Статті в журналах: "Nanophotonic sensors"

1

Bogue, Robert. "Nanophotonic technologies driving innovations in molecular sensing." Sensor Review 38, no. 2 (March 19, 2018): 171–75. http://dx.doi.org/10.1108/sr-07-2017-0124.

Повний текст джерела

Анотація:

Purpose This paper aims to provide a technical insight into recent molecular sensor developments involving nanophotonic materials and phenomena. Design/methodology/approach Following an introduction, this highlights a selection of recent research activities involving molecular sensors based on nanophotonic technologies. It discusses chemical sensors, gas sensors and finally the role of nanophotonics in Raman spectroscopy. Brief concluding comments are drawn. Findings This shows that nanophotonic technologies are being applied to a diversity of molecular sensors and have the potential to yield devices with enhanced features such as higher sensitivity and reduced size. As several of these sensors can be fabricated with CMOS technology, potential exists for mass-production and significantly reduced costs. Originality/value This article illustrates how emerging nanophotonic technologies are set to enhance the capabilities of a diverse range of molecular sensors.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Shakoor, Abdul, James Grant, Marco Grande, and David R. S. Cumming. "Towards Portable Nanophotonic Sensors." Sensors 19, no. 7 (April 10, 2019): 1715. http://dx.doi.org/10.3390/s19071715.

Повний текст джерела

Анотація:

A range of nanophotonic sensors composed of different materials and device configurations have been developed over the past two decades. These sensors have achieved high performance in terms of sensitivity and detection limit. The size of onchip nanophotonic sensors is also small and they are regarded as a strong candidate to provide the next generation sensors for a range of applications including chemical and biosensing for point-of-care diagnostics. However, the apparatus used to perform measurements of nanophotonic sensor chips is bulky, expensive and requires experts to operate them. Thus, although integrated nanophotonic sensors have shown high performance and are compact themselves their practical applications are limited by the lack of a compact readout system required for their measurements. To achieve the aim of using nanophotonic sensors in daily life it is important to develop nanophotonic sensors which are not only themselves small, but their readout system is also portable, compact and easy to operate. Recognizing the need to develop compact readout systems for onchip nanophotonic sensors, different groups around the globe have started to put efforts in this direction. This review article discusses different works carried out to develop integrated nanophotonic sensors with compact readout systems, which are divided into two categories; onchip nanophotonic sensors with monolithically integrated readout and onchip nanophotonic sensors with separate but compact readout systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Chen, Qin, Xin Hu, Long Wen, Yan Yu, and David R. S. Cumming. "Nanophotonic Image Sensors." Small 12, no. 36 (May 30, 2016): 4922–35. http://dx.doi.org/10.1002/smll.201600528.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Zhu, Alexander Y., and Ertugrul Cubukcu. "Graphene nanophotonic sensors." 2D Materials 2, no. 3 (September 24, 2015): 032005. http://dx.doi.org/10.1088/2053-1583/2/3/032005.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Yesilkoy, Filiz. "Optical Interrogation Techniques for Nanophotonic Biochemical Sensors." Sensors 19, no. 19 (October 3, 2019): 4287. http://dx.doi.org/10.3390/s19194287.

Повний текст джерела

Анотація:

The manipulation of light via nanoengineered surfaces has excited the optical community in the past few decades. Among the many applications enabled by nanophotonic devices, sensing has stood out due to their capability of identifying miniscule refractive index changes. In particular, when free-space propagating light effectively couples into subwavelength volumes created by nanostructures, the strongly-localized near-fields can enhance light’s interaction with matter at the nanoscale. As a result, nanophotonic sensors can non-destructively detect chemical species in real-time without the need of exogenous labels. The impact of such nanophotonic devices on biochemical sensor development became evident as the ever-growing research efforts in the field started addressing many critical needs in biomedical sciences, such as low-cost analytical platforms, simple quantitative bioassays, time-resolved sensing, rapid and multiplexed detection, single-molecule analytics, among others. In this review, the optical transduction methods used to interrogate optical resonances of nanophotonic sensors will be highlighted. Specifically, the optical methodologies used thus far will be evaluated based on their capability of addressing key requirements of the future sensor technologies, including miniaturization, multiplexing, spatial and temporal resolution, cost and sensitivity.

Стилі APA, Harvard, Vancouver, ISO та ін.

6

AlQattan, Bader, Haider Butt, Aydin Sabouri, Ali K. Yetisen, Rajib Ahmed, and Nasim Mahmoodi. "Holographic direct pulsed laser writing of two-dimensional nanostructures." RSC Advances 6, no. 112 (2016): 111269–75. http://dx.doi.org/10.1039/c6ra22241b.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Vaidya, V. D., B. Morrison, L. G. Helt, R. Shahrokshahi, D. H. Mahler, M. J. Collins, K. Tan, et al. "Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device." Science Advances 6, no. 39 (September 2020): eaba9186. http://dx.doi.org/10.1126/sciadv.aba9186.

Повний текст джерела

Анотація:

We report demonstrations of both quadrature-squeezed vacuum and photon number difference squeezing generated in an integrated nanophotonic device. Squeezed light is generated via strongly driven spontaneous four-wave mixing below threshold in silicon nitride microring resonators. The generated light is characterized with both homodyne detection and direct measurements of photon statistics using photon number–resolving transition-edge sensors. We measure 1.0(1) decibels of broadband quadrature squeezing (~4 decibels inferred on-chip) and 1.5(3) decibels of photon number difference squeezing (~7 decibels inferred on-chip). Nearly single temporal mode operation is achieved, with measured raw unheralded second-order correlations g(2) as high as 1.95(1). Multiphoton events of over 10 photons are directly detected with rates exceeding any previous quantum optical demonstration using integrated nanophotonics. These results will have an enabling impact on scaling continuous variable quantum technology.

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Hoang, Thi Hong Cam, Thanh Binh Pham, Thuy Van Nguyen, Van Dai Pham, Huy Bui, Van Hoi Pham, Elena Duran, et al. "Hybrid Integrated Nanophotonic Silicon-based Structures." Communications in Physics 29, no. 4 (December 16, 2019): 481. http://dx.doi.org/10.15625/0868-3166/29/4/13855.

Повний текст джерела

Анотація:

We report nanophotonic silicon-based devices for hybrid integration: 1D photonic crystal (PhC) on optical fiber, i. e. fiber Bragg grating (FBG) sensing probe integrated in fiber laser structure for chemical sensors and slotted planar 2D PhC cavity combined with carbon nanotube (CNT) towards light nanosources. The experiments have been carried out by integrating 1D PhC on optical fiber in fiber laser structure. This structure possesses many advantages including high resolution for wavelength shift, high optical signal-to-noise ratio (OSNR) of about 50~dB, the small full width at half-maximum (FWHM) of about 0.014~nm therefore its accuracy is enhanced, as well as the precision and capability are achieved for remote sensing. Low nitrate concentration in water from 0 to 80 ppm has been used to demonstrate its sensing ability in the experiment. The proposed sensor can work with good repeatability, rapid response, and its sensitivity can be obtained of \(3.2\times 10^{ - 3}\) nm/ppm with the limit of detection (LOD) of 3~ppm. For 2D PhC cavity, enhancement of photoluminescence of CNT emission is observed. The semiconducting single-walled carbon nanotubes (s-SWNTs) solution was prepared by polymer-sorted method and coupled with the confined modes in silicon slotted PhC cavities. The enhancement ratio of 1.15 is obtained by comparing between the PL peaks at two confined modes of the cavity. The PL enhancement result of the integrated system shows the potential for the realization of on-chip nanoscale sources.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Elshorbagy, Mahmoud H., Alexander Cuadrado, and Javier Alda. "Plasmonic Sensors Based on Funneling Light Through Nanophotonic Structures." Plasmonics 15, no. 4 (January 3, 2020): 915–21. http://dx.doi.org/10.1007/s11468-019-01105-6.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Petersen, Jan, Jürgen Volz, and Arno Rauschenbeutel. "Chiral nanophotonic waveguide interface based on spin-orbit interaction of light." Science 346, no. 6205 (September 4, 2014): 67–71. http://dx.doi.org/10.1126/science.1257671.

Повний текст джерела

Анотація:

Controlling the flow of light with nanophotonic waveguides has the potential of transforming integrated information processing. Because of the strong transverse confinement of the guided photons, their internal spin and their orbital angular momentum get coupled. Using this spin-orbit interaction of light, we break the mirror symmetry of the scattering of light with a gold nanoparticle on the surface of a nanophotonic waveguide and realize a chiral waveguide coupler in which the handedness of the incident light determines the propagation direction in the waveguide. We control the directionality of the scattering process and can direct up to 94% of the incoupled light into a given direction. Our approach allows for the control and manipulation of light in optical waveguides and new designs of optical sensors.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Lerma Arce, C., S. Van Put, A. Goes, E. Hallynck, P. Dubruel, K. Komorowska, and P. Bienstman. "Reaction tubes: A new platform for silicon nanophotonic ring resonator sensors." Journal of Applied Physics 115, no. 4 (January 28, 2014): 044702. http://dx.doi.org/10.1063/1.4863782.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Buijs, Robin D., Tom A. W. Wolterink, Giampiero Gerini, A. Femius Koenderink, and Ewold Verhagen. "Information advantage from polarization-multiplexed readout of nanophotonic scattering overlay sensors." Optics Express 29, no. 26 (December 8, 2021): 42900. http://dx.doi.org/10.1364/oe.446346.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Chin, Lip Ket, Yuzhi Shi, and Ai-Qun Liu. "Optical Forces in Silicon Nanophotonics and Optomechanical Systems: Science and Applications." Advanced Devices & Instrumentation 2020 (October 26, 2020): 1–14. http://dx.doi.org/10.34133/2020/1964015.

Повний текст джерела

Анотація:

Light-matter interactions have been explored for more than 40 years to achieve physical modulation of nanostructures or the manipulation of nanoparticle/biomolecule. Silicon photonics is a mature technology with standard fabrication techniques to fabricate micro- and nano-sized structures with a wide range of material properties (silicon oxides, silicon nitrides, p- and n-doping, etc.), high dielectric properties, high integration compatibility, and high biocompatibilities. Owing to these superior characteristics, silicon photonics is a promising approach to demonstrate optical force-based integrated devices and systems for practical applications. In this paper, we provide an overview of optical force in silicon nanophotonic and optomechanical systems and their latest technological development. First, we discuss various types of optical forces in light-matter interactions from particles or nanostructures. We then present particle manipulation in silicon nanophotonics and highlight its applications in biological and biomedical fields. Next, we discuss nanostructure mechanical modulation in silicon optomechanical devices, presenting their applications in photonic network, quantum physics, phonon manipulation, physical sensors, etc. Finally, we discuss the future perspective of optical force-based integrated silicon photonics.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

BALILI, RYAN B. "TRANSFER MATRIX METHOD IN NANOPHOTONICS." International Journal of Modern Physics: Conference Series 17 (January 2012): 159–68. http://dx.doi.org/10.1142/s2010194512008057.

Повний текст джерела

Анотація:

Being able to manipulate light and confine it to small length scales have a multitude of applications in modern technology. Predicting the behavior of nanophotonic devices and the realization of new ones will greatly benefit from insights offered by analytical calculations and numerical modeling. In this paper, we elucidate the fundamental electromagnetic responses of materials and introduce a versatile technique, called transfer matrix method, in modeling the behavior of nanoscale heterostructures. Its application in novel photonic devices such as semiconductor microcavities and surface plasmon resonance sensors will be demonstrated.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Mikhailova, T. V., A. N. Shaposhnikov, S. V. Tomilin, and D. V. Alentiev. "Nanostructures with magnetooptical and plasmonic response for optical sensors and nanophotonic devices." Journal of Physics: Conference Series 1410 (December 2019): 012163. http://dx.doi.org/10.1088/1742-6596/1410/1/012163.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Perkins, Josh, and Behrad Gholipour. "Optoelectronic Gas Sensing Platforms: From Metal Oxide Lambda Sensors to Nanophotonic Metamaterials." Advanced Photonics Research 2, no. 7 (May 20, 2021): 2000141. http://dx.doi.org/10.1002/adpr.202000141.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Zhang, Jingjing, Zhaojian Zhang, Xiaoxian Song, Haiting Zhang, and Junbo Yang. "Infrared Plasmonic Sensing with Anisotropic Two-Dimensional Material Borophene." Nanomaterials 11, no. 5 (April 29, 2021): 1165. http://dx.doi.org/10.3390/nano11051165.

Повний текст джерела

Анотація:

Borophene, a new member of the two-dimensional material family, has been found to support surface plasmon polaritons in visible and infrared regimes, which can be integrated into various optoelectronic and nanophotonic devices. To further explore the potential plasmonic applications of borophene, we propose an infrared plasmonic sensor based on the borophene ribbon array. The nanostructured borophene can support localized surface plasmon resonances, which can sense the local refractive index of the environment via spectral response. By analytical and numerical calculation, we investigate the influences of geometric as well as material parameters on the sensing performance of the proposed sensor in detail. The results show how to tune and optimize the sensitivity and figure of merit of the proposed structure and reveal that the borophene sensor possesses comparable sensing performance with conventional plasmonic sensors. This work provides the route to design a borophene plasmonic sensor with high performance and can be applied in next-generation point-of-care diagnostic devices.

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Seok, Joo Seon, and Heongkyu Ju. "Plasmonic Optical Biosensors for Detecting C-Reactive Protein: A Review." Micromachines 11, no. 10 (September 27, 2020): 895. http://dx.doi.org/10.3390/mi11100895.

Повний текст джерела

Анотація:

C-reactive protein (CRP), a potent acute-phase reactant that increases rapidly in response to inflammation, tissue damage or infections, is also considered an indicator of the risk of cardiovascular diseases and neurological disorders. Recent advances in nanofabrication and nanophotonic technologies have prompted the optical plasmonic phenomena to be tailored for specific detection of human serum CRP into label-free devices. We review the CRP-specific detection platforms with high sensitivity, which feature the thin metal films for surface plasmon resonance, nano-enhancers of zero dimensional nanostructures, and metal nanoparticles for localized surface plasmon resonance. The protocols used for various types of assay reported in literature are also outlines with surface chemical pretreatment required for specific detection of CRPs on a plasmonic surface. Properties including sensitivity and detection range are described for each sensor device reviewed, while challenges faced by plasmonic CRP sensors are discussed in the conclusion, with future directions towards which research efforts need to be made.

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Yan, Shubin, Haoran Shi, Xiaoyu Yang, Jing Guo, Wenchang Wu, and Ertian Hua. "Study on the Nanosensor Based on a MIM Waveguide with a Stub Coupled with a Horizontal B-Type Cavity." Photonics 8, no. 4 (April 16, 2021): 125. http://dx.doi.org/10.3390/photonics8040125.

Повний текст джерела

Анотація:

Due to their compact size and high sensitivity, plasmonic sensors have become a hot topic in the sensing field. A nanosensor structure, comprising the metal–insulator–metal (MIM) waveguide with a stub and a horizontal B-Type cavity, is designed as a refractive index sensor. The spectral characteristics of proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile, which is excited by a coupling between the MIM waveguide and the horizontal B-Type cavity. The normalized HZ field is affected by the difference value between the outer radii R1 and R2 of the semi-circle of the horizontal B-Type cavity greatly. The influence of every element of the whole system on sensing properties is discussed in depth. The sensitivity of the proposed structure can obtain 1548 nm/RIU (refractive index unit) with a figure of merit of 59. The proposed structure has potential in nanophotonic sensing applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Cui, Lianmin, Ling Zhang, and Heping Zeng. "Distance-Dependent Fluorescence Resonance Energy Transfer Enhancement on Nanoporous Gold." Nanomaterials 11, no. 11 (November 1, 2021): 2927. http://dx.doi.org/10.3390/nano11112927.

Повний текст джерела

Анотація:

Fluorescence resonance energy transfers (FRET) between cyan fluorescent protein (CFP) and yellow fluorescent protein (YFP) on nanoporous gold (NPG) are systematically investigated by controlling the distance between NPG and fluorescent proteins with polyelectrolyte multilayers. The FRET between CFP and YFP is significantly enhanced by NPG, and the maximum enhancement is related to both ligament size of NPG and the distance between NPG and proteins. With the optimized distance, 18-fold FRET enhancement was obtained on NPG compared to that on glass, and the conversion efficiency is about 90%. The potential to tune the characteristic energy transfer distance has implications for applications in nanophotonic devices and provides a possible way to design sensors and light energy converters.

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Leitis, Aleksandrs, Andreas Tittl, Mingkai Liu, Bang Hyun Lee, Man Bock Gu, Yuri S. Kivshar, and Hatice Altug. "Angle-multiplexed all-dielectric metasurfaces for broadband molecular fingerprint retrieval." Science Advances 5, no. 5 (May 2019): eaaw2871. http://dx.doi.org/10.1126/sciadv.aaw2871.

Повний текст джерела

Анотація:

Infrared spectroscopy resolves the structure of molecules by detecting their characteristic vibrational fingerprints. Subwavelength light confinement and nanophotonic enhancement have extended the scope of this technique for monolayer studies. However, current approaches still require complex spectroscopic equipment or tunable light sources. Here, we introduce a novel metasurface-based method for detecting molecular absorption fingerprints over a broad spectrum, which combines the device-level simplicity of state-of-the-art angle-scanning refractometric sensors with the chemical specificity of infrared spectroscopy. Specifically, we develop germanium-based high-Q metasurfaces capable of delivering a multitude of spectrally selective and surface-sensitive resonances between 1100 and 1800 cm−1. We use this approach to detect distinct absorption signatures of different interacting analytes including proteins, aptamers, and polylysine. In combination with broadband incoherent illumination and detection, our method correlates the total reflectance signal at each incidence angle with the strength of the molecular absorption, enabling spectrometer-less operation in a compact angle-scanning configuration ideally suited for field-deployable applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Jovanović, Tamara, Đuro Koruga, and Branimir Jovančićević. "Recent Advances in IR and UV/VIS Spectroscopic Characterization of the C76and C84Isomers of D2Symmetry." Journal of Nanomaterials 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/701312.

Повний текст джерела

Анотація:

The stable isomers of the higher fullerenes C76and C84with D2symmetry as well as the basic fullerenes C60and C70were isolated from carbon soot and characterized by the new and advanced methods, techniques, and processes. The validity of several semiempirical, ab initio, and DFT theoretical calculations in predicting the general pattern of IR absorption and the vibrational frequencies, as well as the molecular electronic structure of the C76and C84isomers of D2symmetry, is confirmed, based on recent experimental results. An excellent correlation was found between the previously reported theoretical data and the recently obtained experimental results for these molecules over the relevant spectral range for the identification of fullerenes. These results indicate that there are no errors in the calculations in the significant spectral regions, the assumptions that were based on previous comparisons with partial experimental results. Isolated fullerenes are important for their applications in electronic and optical devices, solar cells, optical limiting, sensors, polymers, nanophotonic materials, diagnostic and therapeutic agents, health and environment protection, and so forth.

Стилі APA, Harvard, Vancouver, ISO та ін.

23

SONG, BONG-SHIK, TAKASHI ASANO, and SUSUMU NODA. "RECENT ADVANCES IN TWO-DIMENSIONAL PHOTONIC CRYSTALS SLAB STRUCTURE: DEFECT ENGINEERING AND HETEROSTRUCTURE." Nano 02, no. 01 (February 2007): 1–13. http://dx.doi.org/10.1142/s1793292007000374.

Повний текст джерела

Анотація:

This paper presents a review on the selected highlights of highly-functional devices in two-dimensional photonic crystals slab structure. By introducing artificial defects in the photonic crystals (that is, defect engineering), novel photonic devices of line-defect waveguides and point-defect nanocavity are demonstrated. For more efficient manipulation of photons, the fundamentals of heterostructure photonic crystals are also reviewed. Heterostructures consist of multiple photonic crystals with different lattice-constants and they provide further high-functionalities such as multiple wavelength operation while maintaining optimized performance and the enhancement of photon manipulation efficiency. Because of the importance of high quality (Q) nanocavity for realization of nanophotonic devices, we also review the design rule of high Q nanocavities and present recent experiments on nanocavities with Q factors in excess of one million (~ 1.2 × 106). The progress of defect engineering and heterostructure in two-dimensional photonic crystals slab structure will accelerate development in ultrasmall photonic chips, cavity quantum electrodynamics, optical sensors, etc.

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Xavier, Jolly, Serge Vincent, Fabian Meder, and Frank Vollmer. "Advances in optoplasmonic sensors – combining optical nano/microcavities and photonic crystals with plasmonic nanostructures and nanoparticles." Nanophotonics 7, no. 1 (January 1, 2018): 1–38. http://dx.doi.org/10.1515/nanoph-2017-0064.

Повний текст джерела

Анотація:

AbstractNanophotonic device building blocks, such as optical nano/microcavities and plasmonic nanostructures, lie at the forefront of sensing and spectrometry of trace biological and chemical substances. A new class of nanophotonic architecture has emerged by combining optically resonant dielectric nano/microcavities with plasmonically resonant metal nanostructures to enable detection at the nanoscale with extraordinary sensitivity. Initial demonstrations include single-molecule detection and even single-ion sensing. The coupled photonic-plasmonic resonator system promises a leap forward in the nanoscale analysis of physical, chemical, and biological entities. These optoplasmonic sensor structures could be the centrepiece of miniaturised analytical laboratories, on a chip, with detection capabilities that are beyond the current state of the art. In this paper, we review this burgeoning field of optoplasmonic biosensors. We first focus on the state of the art in nanoplasmonic sensor structures, high quality factor optical microcavities, and photonic crystals separately before proceeding to an outline of the most recent advances in hybrid sensor systems. We discuss the physics of this modality in brief and each of its underlying parts, then the prospects as well as challenges when integrating dielectric nano/microcavities with metal nanostructures. In Section 5, we hint to possible future applications of optoplasmonic sensing platforms which offer many degrees of freedom towards biomedical diagnostics at the level of single molecules.

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Ijäs, Heini, Sami Nummelin, Boxuan Shen, Mauri Kostiainen, and Veikko Linko. "Dynamic DNA Origami Devices: from Strand-Displacement Reactions to External-Stimuli Responsive Systems." International Journal of Molecular Sciences 19, no. 7 (July 20, 2018): 2114. http://dx.doi.org/10.3390/ijms19072114.

Повний текст джерела

Анотація:

DNA nanotechnology provides an excellent foundation for diverse nanoscale structures that can be used in various bioapplications and materials research. Among all existing DNA assembly techniques, DNA origami proves to be the most robust one for creating custom nanoshapes. Since its invention in 2006, building from the bottom up using DNA advanced drastically, and therefore, more and more complex DNA-based systems became accessible. So far, the vast majority of the demonstrated DNA origami frameworks are static by nature; however, there also exist dynamic DNA origami devices that are increasingly coming into view. In this review, we discuss DNA origami nanostructures that exhibit controlled translational or rotational movement when triggered by predefined DNA sequences, various molecular interactions, and/or external stimuli such as light, pH, temperature, and electromagnetic fields. The rapid evolution of such dynamic DNA origami tools will undoubtedly have a significant impact on molecular-scale precision measurements, targeted drug delivery and diagnostics; however, they can also play a role in the development of optical/plasmonic sensors, nanophotonic devices, and nanorobotics for numerous different tasks.

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Caro, Tim, Mary Caswell Stoddard, and Devi Stuart-Fox. "Animal coloration research: why it matters." Philosophical Transactions of the Royal Society B: Biological Sciences 372, no. 1724 (May 22, 2017): 20160333. http://dx.doi.org/10.1098/rstb.2016.0333.

Повний текст джерела

Анотація:

While basic research on animal coloration is the theme of this special edition, here we highlight its applied significance for industry, innovation and society. Both the nanophotonic structures producing stunning optical effects and the colour perception mechanisms in animals are extremely diverse, having been honed over millions of years of evolution for many different purposes. Consequently, there is a wealth of opportunity for biomimetic and bioinspired applications of animal coloration research, spanning colour production, perception and function. Fundamental research on the production and perception of animal coloration is contributing to breakthroughs in the design of new materials (cosmetics, textiles, paints, optical coatings, security labels) and new technologies (cameras, sensors, optical devices, robots, biomedical implants). In addition, discoveries about the function of animal colour are influencing sport, fashion, the military and conservation. Understanding and applying knowledge of animal coloration is now a multidisciplinary exercise. Our goal here is to provide a catalyst for new ideas and collaborations between biologists studying animal coloration and researchers in other disciplines. This article is part of the themed issue ‘Animal coloration: production, perception, function and application’.

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Ryabov, Daniil, Olesia Pashina, George Zograf, Sergey Makarov, and Mihail Petrov. "Optical heating of doped semiconductor nanocylinders supporting quasi-BIC modes." Journal of Physics: Conference Series 2015, no. 1 (November 1, 2021): 012129. http://dx.doi.org/10.1088/1742-6596/2015/1/012129.

Повний текст джерела

Анотація:

Abstract In the recent years, semiconductor and dielectric nanophotonic structures attracted a lot of attention for their resonant optical properties finding applications in thermal tuning and optical heating. Exciting high quality optical modes of both electric and magnetic nature in nanoresonators of high-index materials, one can effectively enhance optical absorption in such structures. Another big advantage of semiconductor materials is the ability to finely control the level of optical losses in visible and near infrared (near-IR) range through varying the doping level. In this work, we show theoretically that by moderate carrier doping of silicon via donors from group V materials one can achieve effective heating of nanoresonators. We show that by tuning the doping level of crystalline silicon supporting high quality non-radiative modes based on quasi bound states in the continuum one can achieve strong heating in near-IR under continuous wave regime illumination. We believe that our finding will pave the way for an efficient semiconductor near-IR all-optical sensors and nanoheaters.

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Jovanović, Tamara, Djuro Koruga, Aleksandra Mitrović, Dragomir Stamenković, and Gordana Dević. "IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination." Journal of Nanomaterials 2018 (September 23, 2018): 1–9. http://dx.doi.org/10.1155/2018/6862710.

Повний текст джерела

Анотація:

The only stable isomer of the higher fullerene C76 of D2 symmetry was isolated from carbon soot by the new and advanced extraction and chromatographic methods and processes. Characterization of the isolated C76-D2 was performed by the IR(KBr) and UV/VIS method in the absorption mode. All of the experimentally observed infrared and electronic absorption bands are in excellent agreement with the theoretical calculations for this fullerene. The molar absorptivity ε and the integrated molar absorptivity Ψ of the observed entire new series of various characteristic, both deconvoluted and convoluted IR absorption bands of the C76-D2 isomer, in different integration ranges were determined. In addition, the molar extinction coefficients of its UV/VIS absorption bands were determined. The obtained novel IR and UV/VIS spectroscopic parameters are significant for the quantitative assessment of C76-D2. All the presented data are important both for its qualitative and quantitative determination, either in natural resources on Earth and in space or in artificially synthesized materials, electronic and optical devices, optical limiters, sensors, polymers, solar cells, nanophotonic lenses, diagnostic and therapeutic agents, pharmaceutical substances, for targeted drug delivery, incorporation of metal atoms, in biomedical engineering, industry, applied optical science, batteries, catalysts and so forth.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Golovastikov, N. V., S. P. Dorozhkin, and V. A. Soife. "Intelligent systems based on photonics." Ontology of Designing 11, no. 4 (December 31, 2021): 422–36. http://dx.doi.org/10.18287/2223-9537-2021-11-4-422-436.

Повний текст джерела

Анотація:

This paper discusses the prospects of photonics, shows the relevance and applicability of photonics research. The poten-tial of photonics technologies to answer the socio-economic challenges of the digital transformation age is revealed. Opportunities that emerge with the introduction of photonic devices to various technical systems designed for environ-mental protection and quality of life improvement are demonstrated. Concrete photonics structures and devices for such key applications as spectroscopy, analog optical calculations, and optical neural networks are closely examined. Possi-ble applications for photonic sensors and new type spectrometers are outlined, their competitive advantages explored. Various geometries of extra fine compact photonic spectrometers are presented: based on digital planar diagrams, inte-grated into the photonic waveguides, metasurfaces, diffraction gratings with varying parameters. The benefits of analog optical computations against conventional electronic devices are discussed. Various nanophotonic structures designed for differential and integral operators are studied, solutions for edge detection are proposed. The concept for artificial intelligence implementation on the photonics platform using optical neural networks is analyzed. Various solutions are examined: containing sequences of diffraction elements and based on Huygens–Fresnel principle, as well as planar structures comprised of waveguides that interact as Mach–Zehnder interferometer. SPIE estimation of the international photonics market proposes that the peak of interest for this field is yet to be achieved and photonics will claim its place in the future technological landscape.

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Evangelou, Sofia. "Altering Degenerate Four-Wave Mixing and Third-Harmonic Generation in a Coupled Quantum Dot–Metallic Nanoparticle Structure with the Use of the Purcell Effect." Materials Proceedings 4, no. 1 (November 12, 2020): 39. http://dx.doi.org/10.3390/iocn2020-07875.

Повний текст джерела

Анотація:

The modification of the optical properties of semiconductor quantum dots near plasmonic nanostructures has attracted significant attention in recent years due to the several potential applications of the coupled nanostructures in optoelectronics, biophotonics and quantum technologies, including sensors, light harvesting, quantum information processing and quantum communication, imaging, photocatalysis, solar cells and others. One of the methods for modifying the nonlinear optical susceptibilities in quantum dots near plasmonic nanostructures uses the change of the spontaneous decay rates of quantum emitters due to the Purcell effect in a tailored nanophotonic environment. In this work, using this idea, we study the modification of the third-order nonlinear optical susceptibilities and specifically the phenomena of degenerate four-wave mixing and third-harmonic generation in a quantum dot that is coupled to a spherical metallic nanoparticle. We find that the strong alteration of the quantum dot’s spontaneous decay rate near the metallic nanoparticle gives strong variation, either enhancement or suppression, of the phenomena of degenerate four-wave mixing and third-harmonic generation for different distances of the quantum dot from the surface of the metallic nanoparticle, depending on the electric dipole direction of the quantum dot. We also show that the degree of enhancement or suppression of the nonlinear optical susceptibilities differs for the studied phenomena and it is stronger for degenerate four-wave mixing than for third-harmonic generation. This work may have important potential applications in the creation of nanoscale photonic devices for various technological applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Butt, Muhammad Ali ALI, and Nikolay Kazanskiy. "Enhancing the sensitivity of a standard plasmonic MIM square ring resonator by incorporating the Nano-dots in the cavity." Photonics Letters of Poland 12, no. 1 (March 31, 2020): 1. http://dx.doi.org/10.4302/plp.v12i1.902.

Повний текст джерела

Анотація:

We studied the metal-insulator-metal square ring resonator design incorporated with nano-dots that serve to squeeze the surface plasmon wave in the cavity of the ring. The E-field enhances at the boundaries of the nano-dots providing a strong interaction of light with the surrounding medium. As a result, the sensitivity of the resonator is highly enhanced compared to the standard ring resonator design. The best sensitivity of 907 nm/RIU is obtained by placing seven nano-dots of radius 4 nm in all four sides of the ring with a period (ᴧ)= 3r. The proposed design will find applications in biomedical science as highly refractive index sensors. Full Text: PDF References:Z. Han, S. I. Bozhevolnyi. "Radiation guiding with surface plasmon polaritons", Rep. Prog. Phys. 76, 016402 (2013). [CrossRef]N.L. Kazanskiy, S.N. Khonina, M.A. Butt. "Plasmonic sensors based on Metal-insulator-metal waveguides for refractive index sensing applications: A brief review", Physica E 117, 113798 (2020). [CrossRef]D.K. Gramotnev, S.I. Bozhevolnyi. "Plasmonics beyond the diffraction limit", Nat. Photonics 4, 83 (2010). [CrossRef]A.N.Taheri, H. Kaatuzian. "Design and simulation of a nanoscale electro-plasmonic 1 × 2 switch based on asymmetric metal–insulator–metal stub filters", Applied Optics 53, 28 (2014). [CrossRef]P. Neutens, L. Lagae, G. Borghs, P. V. Dorpe. "Plasmon filters and resonators in metal-insulator-metal waveguides", Optics Express 20, 4 (2012). [CrossRef]M.A. Butt, S.N. Khonina, N. L. Kazanskiy. "Metal-insulator-metal nano square ring resonator for gas sensing applications", Waves in Random and complex media [CrossRef]M.A.Butt, S.N.Khonina, N.L.Kazanskiy. "Hybrid plasmonic waveguide-assisted Metal–Insulator–Metal ring resonator for refractive index sensing", Journal of Modern Optics 65, 1135 (2018). [CrossRef]M.A.Butt, S.N. Khonina, N.L. Kazanskiy, "Highly sensitive refractive index sensor based on hybrid plasmonic waveguide microring resonator", Waves in Random and complex media [CrossRef]Y. Fang, M. Sun. "Nanoplasmonic waveguides: towards applications in integrated nanophotonic circuits", Light:Science & Applications 4, e294 (2015). [CrossRef]H. Lu, G.X. Wang, X.M. Liu. "Manipulation of light in MIM plasmonic waveguide systems", Chin Sci Bull [CrossRef]J.N. Anker et al. "Biosensing with plasmonic nanosensors", Nature Materials 7, 442 (2008). [CrossRef]M.A.Butt, S.N. Khonina, N.L. Kazanskiy. Journal of Modern Optics 66, 1038 (2019).[CrossRef]Z.-D. Zhang, H.-Y. Wang, Z.-Y. Zhang. "Fano Resonance in a Gear-Shaped Nanocavity of the Metal–Insulator–Metal Waveguide", Plasmonics 8,797 (2013) [CrossRef]Y. Yu, J. Si, Y. Ning, M. Sun, X. Deng. Opt. Lett. 42, 187 (2017) [CrossRef]B.H.Zhang, L-L. Wang, H-J. Li et al. "Two kinds of double Fano resonances induced by an asymmetric MIM waveguide structure", J. Opt. 18,065001 (2016) [CrossRef]X. Zhao, Z. Zhang, S. Yan. "Tunable Fano Resonance in Asymmetric MIM Waveguide Structure", Sensors 17, 1494 (2017) [CrossRef]J. Zhou et al. "Transmission and refractive index sensing based on Fano resonance in MIM waveguide-coupled trapezoid cavity", AIP Advances 7, 015020 (2017) [CrossRef]V. Perumal, U. Hashim. "Advances in biosensors: Principle, architecture and applications", J. Appl. Biomed. 12, 1 (2014)[CrossRef]H.Gai, J. Wang , Q. Tian, "Modified Debye model parameters of metals applicable for broadband calculations", Appl. Opt. 46 (12), 2229 (2007) [CrossRef]

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Jovanović, Tamara. "Determination of New IR and UV/VIS Spectroscopic Parameters of the C84-D2:22 Isomer for Its Quantitative Assessment, Identification and Possible Applications." Crystals 11, no. 7 (June 28, 2021): 757. http://dx.doi.org/10.3390/cryst11070757.

Повний текст джерела

Анотація:

The stable isomers of the higher fullerenes C76-D2 and C84-D2:22, as well as fullerenes C60 and C70 were isolated from carbon soot by the new and improved extraction and chromatographic methods and processes. Characterizations of the C84-D2:22 isomer in this study were performed by infrared and electronic absorption spectroscopy. All of the experimentally observed IR and UV/VIS bands were in excellent agreement with the semi-empirical, DFT and TB potential theoretical calculations for this molecule. The molar extinction coefficients and the integrated molar extinction coefficients of the observed larger number of completely separated infrared absorption maxima and shoulders of fullerene C84-D2:22, as well as of its main convoluted maxima, in different and new relevant entire integration ranges, including neighboring, and all surrounding absorption shoulders were determined and their relative intensities compared. In addition, the molar absorptivity of the electronic absorption bands of this carbon cluster was found. The new IR and UV/VIS spectroscopic parameters that are significant for the quantitative determination, identification and numerous possible applications of C84-D2:22 are obtained and their changes compared to C76-D2 observed. Isolated and characterized C84-D2:22, as well as other fullerenes from this research can be used in electronic, optical, chemical and biomedical devices, superconductors, semiconductors, batteries, catalysts, polymers, sensors, solar cells, nanophotonic lenses with better optical transmission, refraction and wettability, diagnostic and therapeutic pharmaceutical substances, such as those against diabetes, cancer, neurodegenerative disorders, free radical scavenging, radio nuclear, antibacterial and antiviral agents that can inhibit HIV 1, HSV, COVID-19, influenza, malaria and so forth.

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Zhang, Xiaoyu, Shubin Yan, Jilai Liu, Yifeng Ren, Yi Zhang, and Lifang Shen. "Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator." Micromachines 13, no. 5 (May 9, 2022): 750. http://dx.doi.org/10.3390/mi13050750.

Повний текст джерела

Анотація:

In this study, a novel refractive index sensor structure was designed consisting of a metal-insulator-metal (MIM) waveguide with two rectangular baffles and a U-Shaped Ring Resonator (USRR). The finite element method was used to theoretically investigate the sensor’s transmission characteristics. The simulation results show that Fano resonance is a sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the successive wide-band mode. Next, the formation of broadband and narrowband is further studied, and finally the key factors affecting the performance of the sensor are obtained. The best sensitivity of this refractive-index sensor is 2020 nm/RIU and the figure of merit (FOM) is 53.16. The presented sensor has the potential to be useful in nanophotonic sensing applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Kirk, James T., Kerry W. Lannert, Daniel M. Ratner, and Jill M. Johnsen. "Serologic and Phenotypic Analysis of Blood Types Via Silicon Nanophotonics." Blood 124, no. 21 (December 6, 2014): 1565. http://dx.doi.org/10.1182/blood.v124.21.1565.1565.

Повний текст джерела

Анотація:

Abstract Tens of millions of donor and patient samples are tested yearly to establish blood type compatibility between donor and recipient and to protect recipients from blood-borne infectious diseases. Blood type testing, particularly donor testing, is traditionally based in centralized clinical laboratories. However, current blood typing methods are encumbered by reagent availability, cost, technical training requirements, and time, placing a costly burden on the medical system. To address practical needs in blood typing, we have developed a multiplexed blood analysis platform using a low-cost and scalable silicon photonic biochip. This study investigates the use of silicon microring sensors to capture, detect, and quantify specific red blood cell (RBC) membrane antigens and anti-blood type antibodies from blood. To validate ABO blood phenotyping, microring resonators were streptavidin coated and functionalized with biotinylated anti-A IgM or biotinylated anti-B IgM antibodies. First, the response of anti-A/B functionalized microring resonators to characterized RBC membranes (RBC ghosts, 108 cells/ml) were measured in real-time (Figure 1). The biosensor arrays also exhibited minimal non-specific adsorption of RBC membrane fragments to the sensor surface. Microring resonators were shown to be suitable for identifying RBC ABO phenotype from donor blood samples. For ABO serologic analysis, silicon chips were functionalized with synthetic multivalent polymeric blood group antigens to serve as capture elements for circulating anti-ABO antibodies. Each chip also had sensors functionalized with biotinylated Protein A (btn-ProtA) and a biotinylated polyacrylamide polymer scaffold (btn-paa) to serve as on-chip positive and negative controls, respectively. The multiplexed biosensor chips were exposed to 100mL of plasma, followed by an anti-human-IgM antibody to enhance detection and quantification of antibodies bound to the surface. The resonance shift in each microring resonator was monitored over time, and the sensor response of the polymeric A and B blood group antigens was normalized to the control sensors. Figure 2 illustrates the levels of bound anti-A and anti-B for a panel of donor blood samples with varying ABO blood type, expressed as a relative shift in sensor resonance wavelength. These results demonstrate the detection of the naturally occurring' anti-A/B IgM antibodies for each respective ABO blood type. We have demonstrated that microring resonator biosensor arrays can quantitatively determine the donor ABO phenotypic and serologic status while incorporating on-chip controls for process standardization. Our work serves as proof-of-concept that a multiplexed silicon nanophotonics platform can rapidly detect both RBC antigens and anti-RBC antibodies in biological samples. This method has the potential for broad applicability in hematology and transfusion medicine for blood typing, quantitative monitoring of specific antibodies, and pathogen screening. Figure 1 Figure 1. Figure 2 Figure 2. Disclosures No relevant conflicts of interest to declare.

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Yan, Ruoqin, Tao Wang, Huimin Wang, Xinzhao Yue, Lu Wang, Yuandong Wang, and Jinyan Zhang. "Effective excitation of bulk plasmon-polaritons in hyperbolic metamaterials for high-sensitivity refractive index sensing." Journal of Materials Chemistry C 10, no. 13 (2022): 5200–5209. http://dx.doi.org/10.1039/d1tc06114c.

Повний текст джерела

Анотація:

The study of hyperbolic metamaterial (HMM) refractive index sensors is an active field of plasmonics and nanophotonics. Our study provides the basis for the development of ultrasensitive HMM sensors related to biochemical sensing.

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Lee, Chengkuo, Jayaraj Thillaigovindan, Chii-Chang Chen, Xian Tong Chen, Ya-Ting Chao, Shaohua Tao, Wenfeng Xiang, Aibin Yu, Hanhua Feng, and G. Q. Lo. "Si nanophotonics based cantilever sensor." Applied Physics Letters 93, no. 11 (September 15, 2008): 113113. http://dx.doi.org/10.1063/1.2987515.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Shakoor, Abdul, Boon Chong Cheah, Mohammed A. Al-Rawhani, Marco Grande, James Grant, Luiz Carlos Paiva Gouveia, and David R. S. Cumming. "CMOS Nanophotonic Sensor With Integrated Readout System." IEEE Sensors Journal 18, no. 22 (November 15, 2018): 9188–94. http://dx.doi.org/10.1109/jsen.2018.2870255.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Jubair, Doaa S., Alwan M. Alwan, and Walid K. Hamoudi. "Sensing Performance of Mono and Bimetallic Nano Photonics Surface Enhanced Raman Scattering (SERS) Devices." Engineering and Technology Journal 39, no. 7 (July 25, 2021): 1174–84. http://dx.doi.org/10.30684/etj.v39i7.1982.

Повний текст джерела

Анотація:

In this research, sensing performance of mono and bimetallic nanophotonics SERS sensors of gold-silver nano-columns for the detection of chlorpyrifos was investigated. For optimum substrates for Gold-silver/nano-column surface-enhanced, Raman scattering (SERS) was achieved with the silicon substrate. By combining the Ag SERS activity with the Au chemical stability and nano-columns Si large field enhancement, the Au-Ag/nano-columns Si substrate revealed perfect reproducibility, homogeneity, sensitivity in addition to chemical stability. The sensors were tested by Atomic force microscope (AFM), field emission scanning electron microscope (FESEM), energy-dispersive X-ray analysis (EDS), and X-ray diffraction (XRD). Findings presented in this research indicated modified distributions and sizes of formed alloy nanoparticles, and the hot spots junctions within the nanophotonics layer after changing the nanoparticles types. The SERS sensors performance displayed an excellent recognition of ultra-low concentrations of chlorpyrifos solutions with an exponential relationship with the Raman signal. The highest enhancement factor (Ef=1.56×106) and minimum limit of detection 0.069 mg/Kg were obtained with Au-Ag sensors.

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Liu, Zeng-Xing, and Hao Xiong. "Highly Sensitive Charge Sensor Based on Atom-Assisted High-Order Sideband Generation in a Hybrid Optomechanical System." Sensors 18, no. 11 (November 8, 2018): 3833. http://dx.doi.org/10.3390/s18113833.

Повний текст джерела

Анотація:

Realizing highly sensitive charge sensors is of fundamental importance in physics, and may find applications in metrology, electronic tunnel imaging, and engineering technology. With the development of nanophotonics, cavity optomechanics with Coulomb interaction provides a powerful platform to explore new options for the precision measurement of charges. In this work, a method of realizing a highly sensitive charge sensor based on atom-assisted high-order sideband generation in a hybrid optomechanical system is proposed. The advantage of this scheme is that the sideband cutoff order and the charge number satisfy a monotonically increasing relationship, which is more sensitive than the atom-free case discussed previously. Calculations show that the sensitivity of the charge sensor in our scheme is improved by about 25 times. In particular, our proposed charge sensor can operate in low power conditions and extremely weak charge measurement environments. Furthermore, phase-dependent effects between the sideband generation and Coulomb interaction are also discussed in detail. Beyond their fundamental scientific significance, our work is an important step toward measuring individual charge.

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Vitrik, Oleg. "Editorial for the Special Issue Applications of Nanomaterials in Plasmonic Sensors." Nanomaterials 12, no. 10 (May 11, 2022): 1634. http://dx.doi.org/10.3390/nano12101634.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Liu, Yazhao, and H. W. M. Salemink. "Planarized nanophotonic sensor for real-time fluid sensing." AIP Advances 7, no. 9 (September 2017): 095306. http://dx.doi.org/10.1063/1.4993104.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Tribollet, Jérôme. "Hybrid nanophotonic-nanomagnonic SiC-YiG quantum sensor: I/theoretical design and properties." European Physical Journal Applied Physics 90, no. 2 (May 2020): 20102. http://dx.doi.org/10.1051/epjap/2020200062.

Повний текст джерела

Анотація:

Here I present the theory of a new hybrid paramagnetic-ferrimagnetic SiC-YiG quantum sensor. It is designed to allow sub-nanoscale single external spin sensitivity optically detected pulsed electron electron double resonance spectroscopy, using an X band pulsed EPR spectrometer and an optical fiber. The sensor contains one single V2 negatively charged silicon vacancy color center in 4H-SiC, whose photoluminescence is waveguided by a 4H-SiC nanophotonic structure towards an optical fiber. This V2 spin probe is created by ion implantation at a depth of few nanometers below the surface, determined by optically detected paramagnetic resonance under the strong magnetic field gradient of a YiG ferrimagnetic nanostripe located on the back-side of the nanophotonic structure. This gradient also allow the study, slice by slice at nanoscale, of the target paramagnetic sample. The fabrication process of this quantum sensor, its magnetic and optical properties, its external spins sensing properties in a structural biology context, and its integration to a standard commercially available pulsed EPR spectrometer are all presented here.

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Koshelev, Kirill, Sergey Kruk, Elizaveta Melik-Gaykazyan, Jae-Hyuck Choi, Andrey Bogdanov, Hong-Gyu Park, and Yuri Kivshar. "Subwavelength dielectric resonators for nonlinear nanophotonics." Science 367, no. 6475 (January 16, 2020): 288–92. http://dx.doi.org/10.1126/science.aaz3985.

Повний текст джерела

Анотація:

Subwavelength optical resonators made of high-index dielectric materials provide efficient ways to manipulate light at the nanoscale through mode interferences and enhancement of both electric and magnetic fields. Such Mie-resonant dielectric structures have low absorption, and their functionalities are limited predominantly by radiative losses. We implement a new physical mechanism for suppressing radiative losses of individual nanoscale resonators to engineer special modes with high quality factors: optical bound states in the continuum (BICs). We demonstrate that an individual subwavelength dielectric resonator hosting a BIC mode can boost nonlinear effects increasing second-harmonic generation efficiency. Our work suggests a route to use subwavelength high-index dielectric resonators for a strong enhancement of light–matter interactions with applications to nonlinear optics, nanoscale lasers, quantum photonics, and sensors.

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Muellner, P., R. Bruck, R. Hainberger, M. Karl, M. Baus, and T. Wahlbrink. "Silicon nanophotonic components for an integrated refractometric sensor array." Procedia Engineering 5 (2010): 1300–1303. http://dx.doi.org/10.1016/j.proeng.2010.09.352.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Donaldson, Laurie. "New sensitive nanophotonic sensor that can read molecular fingerprints." Materials Today 21, no. 8 (October 2018): 802. http://dx.doi.org/10.1016/j.mattod.2018.08.015.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Guo, Qi, Zhujun Shi, Yao-Wei Huang, Emma Alexander, Cheng-Wei Qiu, Federico Capasso, and Todd Zickler. "Compact single-shot metalens depth sensors inspired by eyes of jumping spiders." Proceedings of the National Academy of Sciences 116, no. 46 (October 28, 2019): 22959–65. http://dx.doi.org/10.1073/pnas.1912154116.

Повний текст джерела

Анотація:

Jumping spiders (Salticidae) rely on accurate depth perception for predation and navigation. They accomplish depth perception, despite their tiny brains, by using specialized optics. Each principal eye includes a multitiered retina that simultaneously receives multiple images with different amounts of defocus, and from these images, distance is decoded with relatively little computation. We introduce a compact depth sensor that is inspired by the jumping spider. It combines metalens optics, which modifies the phase of incident light at a subwavelength scale, with efficient computations to measure depth from image defocus. Instead of using a multitiered retina to transduce multiple simultaneous images, the sensor uses a metalens to split the light that passes through an aperture and concurrently form 2 differently defocused images at distinct regions of a single planar photosensor. We demonstrate a system that deploys a 3-mm-diameter metalens to measure depth over a 10-cm distance range, using fewer than 700 floating point operations per output pixel. Compared with previous passive depth sensors, our metalens depth sensor is compact, single-shot, and requires a small amount of computation. This integration of nanophotonics and efficient computation brings artificial depth sensing closer to being feasible on millimeter-scale, microwatts platforms such as microrobots and microsensor networks.

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Wenfeng Xiang and Chengkuo Lee. "Nanophotonics Sensor Based on Microcantilever for Chemical Analysis." IEEE Journal of Selected Topics in Quantum Electronics 15, no. 5 (2009): 1323–26. http://dx.doi.org/10.1109/jstqe.2009.2016578.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Savotchenko, Sergey E. "ТМ ПОЛЯРИЗОВАННЫЕ ПОВЕРХНОСТНЫЕ ВОЛНЫ,РАСПРОСТРАНЯЮЩИЕСЯ ВДОЛЬ ПОВЕРХНОСТИ ФОТОРЕФРАКТИВНОГО КРИСТАЛЛА С НЕЛИНЕЙНЫМ САМОФОКУСИРУЮЩИМ ПОКРЫТИЕМ". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, № 3 (26 вересня 2019): 441–45. http://dx.doi.org/10.17308/kcmf.2019.21/1154.

Повний текст джерела

Анотація:

Рассмотрена модель композитной волноводной структуры, основанной на фоторефрактивном кристалле с диффузионным механизмом с нелинейным самофокусирующим покрытием. Показано, что вдоль такой структуры могут распространяться поверхностные волны необыкновенной поляризации. Определены характеристики таких волн. Установлена возможность увеличения или подавления поля на границе фоторефрактивного кристалла. REFERENCES Strudley T., Bruck R., Mills B., Muskens O. L. An ultrafast reconfi gurable nanophotonic switch using wavefront shaping of light in a nonlinear nanomaterial. Light: Science & Applications, 2014, v. 3, p. e207. https://doi.org/10.1038/lsa.2014.88. Naim Ben Ali. Narrow stop band microwave filters by using hybrid generalized quasi-periodic photonic crystals.Chinese J. of Phys., 2017, v. 55, pp. 2384–2392. https://doi.org/10.1016/j.cjph.2017.10.008 Bettella G., Zamboni R., Pozza G., Zaltron A., Montevecchi C., Pierno M., Mistura G., Sada C., Gauthier-Manuel L., Chauvet M. LiNbO3 integrated system for opto-microfl uidic sensing. Sensors and Actuators B: Chem., 2019, v. 282, pp. 391–398. https://doi.org/10.1016/j.snb.2018.10.082. Petrov M. P., Stepanov S. I., Homenko A. V. Fotorefraktivnyekristally v kogerentnojoptike[Photorefrac tive crystals in coherent optics]. Saint Petersburg, Nauka Publ., 1992, 317 p. (in Russ.) Belyi V. N., Khilo N. A. Surface light waves at the border of a photorefractive crystal with a diffusiondrift nonlinearity mechanism.Tech. Phys. Lett., 1997, v. 23(12), pp. 31–36. (in Russ.) Shandarov S. M., Shandarov E. S. Photorefractive slit waves.Tech. Phys. Lett., 1997, v. 23(15), pp. 30–35. (in Russ.) Chetkin S. A., Akhmedzhanov I. M. Optical surface wave in a crystal with diffusion photorefractive nonlinearity.Quant. Electr., 2011, v. 41(11), pp. 980–985. (in Russ.) Usievich D. Kh., Nurligareev B. A., Sychugov V. A., Ivleva L. I. Combined waveguide on a photorefractive crystal.Quant. Electr., v. 41(11), pp. 924–928. (in Russ.) Savotchenko S. E. Nonlinear surface TM waves in a Kerr defocusing nonlinear slab sandwiched between photorefractive crystals.Solid State Communications, 2019. v. 296(7), pp. 32–36. https://doi.org/10.1016/j.ssc.2019.04.008. Savotchenko S. E.Effect of the Temperature on the Redistribution of an Energy Flux Carried by Surface Waves along the Interface between Crystals with Different Mechanisms of Formation of a Nonlinear Response. JETP Lett., 2019, v. 109(11), pp. 778–782. https://doi.org/10.1134/S0370274X19110109 Savotchenko S. E. Nonlinear surface waves at the interface of optical media with various mechanisms for inducing nonlinearity. JETP, 2019, v. 156(8), pp. 195–204. https://doi.org/10.1134/S0044451019080017.

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Nikolov, Daniel K., Aaron Bauer, Fei Cheng, Hitoshi Kato, A. Nick Vamivakas, and Jannick P. Rolland. "Metaform optics: Bridging nanophotonics and freeform optics." Science Advances 7, no. 18 (April 2021): eabe5112. http://dx.doi.org/10.1126/sciadv.abe5112.

Повний текст джерела

Анотація:

The demand for high-resolution optical systems with a compact form factor, such as augmented reality displays, sensors, and mobile cameras, requires creating new optical component architectures. Advances in the design and fabrication of freeform optics and metasurfaces make them potential solutions to address the previous needs. Here, we introduce the concept of a metaform—an optical surface that integrates the combined benefits of a freeform optic and a metasurface into a single optical component. We experimentally realized a miniature imager using a metaform mirror. The mirror is fabricated via an enhanced electron beam lithography process on a freeform substrate. The design degrees of freedom enabled by a metaform will support a new generation of optical systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Сушко, Ольга Анатоліївна. "Analytical system for 3,4-benzopyrene detection based on nanophotonic sensor." Eastern-European Journal of Enterprise Technologies 2, no. 5(68) (April 15, 2014): 8. http://dx.doi.org/10.15587/1729-4061.2014.22408.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Статті в журналах з теми "Nanophotonic sensors"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями