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Journal articles on the topic 'Optical resonance'

To see the other types of publications on this topic, follow the link: Optical resonance.

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2024

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1

Jinhua Hu, Jinhua Hu, Xiuhong Liu Xiuhong Liu, Jijun Zhao Jijun Zhao, and and Jun Zou and Jun Zou. "Investigation of Fano resonance in compound resonant waveguide gratings for optical sensing." Chinese Optics Letters 15, no. 3 (2017): 030502–30505. http://dx.doi.org/10.3788/col201715.030502.

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2

Dongyang Wang, Dongyang Wang, Jiaguang Han Jiaguang Han, and Shuang Zhang Shuang Zhang. "Optical cavity resonance with magnetized plasma." Chinese Optics Letters 16, no. 5 (2018): 050005. http://dx.doi.org/10.3788/col201816.050005.

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3

Halas, Naomi. "Playing with Plasmons: Tuning the Optical Resonant Properties of Metallic Nanoshells." MRS Bulletin 30, no. 5 (May 2005): 362–67. http://dx.doi.org/10.1557/mrs2005.99.

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AbstractNanoshells, concentric nanoparticles consisting of a dielectric core and a metallic shell, are simple spherical nanostructures with unique, geometrically tunable optical resonances. As with all metallic nanostructures, their optical properties are controlled by the collective electronic resonance, or plasmon resonance, of the constituent metal, typically silver or gold. In striking contrast to the resonant properties of solid metallic nanostructures, which exhibit only a weak tunability with size or aspect ratio, the optical resonance of a nanoshell is extraordinarily sensitive to the inner and outer dimensions of the metallic shell layer. The underlying reason for this lies beyond classical electromagnetic theory, where plasmon-resonant nanoparticles follow a mesoscale analogue of molecular orbital theory, hybridizing in precisely the same manner as the individual atomic wave functions in simple molecules. This plasmon hybridization picture provides an essential “design rule” for metallic nanostructures that can allow us to effectively predict their optical resonant properties. Such a systematic control of the far-field optical resonances of metallic nanostructures is accomplished simultaneously with control of the field at the surface of the nanostructure. The nanoshell geometry is ideal for tuning and optimizing the near-field response as a stand-alone surface-enhanced Raman spectroscopy (SERS) nanosensor substrate and as a surface-plasmon-resonant nanosensor.Tuning the plasmon resonance of nanoshells into the near-infrared region of the spectrum has enabled a variety of biomedical applications that exploit the strong optical contrast available with nanoshells in a spectral region where blood and tissue are optimally transparent.

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4

Aşırım, Özüm Emre, and Mustafa Kuzuoğlu. "Numerical Study of Resonant Optical Parametric Amplification via Gain Factor Optimization in Dispersive Microresonators." Photonics 7, no. 1 (December 25, 2019): 5. http://dx.doi.org/10.3390/photonics7010005.

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The achievement of wideband high-gain optical parametric amplification has not been shown in micrometer-scale cavities. In this paper we have computationally investigated the optical parametric amplification process in a few micrometer-long dispersive microresonator. By performing a gain medium resonance frequency dependent analysis of optical parametric amplification, we have found that it is possible to achieve a wideband high-gain optical amplification in a dispersive microresonator. In order to account for the effects of dispersion (modeled by the polarization damping coefficient) and the resonance frequency of the gain medium on optical parametric amplification, we have solved the wave equation in parallel with the nonlinear equation of electron cloud motion, using the finite difference time domain method. Then we have determined the resonance frequency values that yield an enhanced or a resonant case of optical parametric amplification, via gain factor optimization. It was observed that if the microresonator is more dispersive (has a lower polarization damping coefficient), then there are more resonance frequencies that yield an optical gain resonance. At these gain resonances, a very wideband, high-gain optical amplification seems possible in the micron scale, which, to our knowledge, has not been previously reported in the context of nonlinear wave mixing theory.

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5

Jáuregui-López, Irati, Pablo Rodriguez-Ulibarri, Sergei Kuznetsov, Nazar Nikolaev, and Miguel Beruete. "THz Sensing With Anomalous Extraordinary Optical Transmission Hole Arrays." Sensors 18, no. 11 (November 9, 2018): 3848. http://dx.doi.org/10.3390/s18113848.

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Subwavelength hole array (HA) metasurfaces support the so-called extraordinary optical transmission (EOT) resonance that has already been exploited for sensing. In this work, we demonstrate the superior performance of a different resonant regime of HA metasurfaces called anomalous EOT, by doing a thorough numerical and experimental study of its ability in thin-film label-free sensing applications in the terahertz (THz) band. A comprehensive analysis using both the regular and anomalous EOT resonances is done by depositing thin layers of dielectric analyte slabs of different thicknesses on the structures in different scenarios. We carry out a detailed comparison and demonstrate that the best sensing performance is achieved when the structure operates in the anomalous EOT resonance and the analyte is deposited on the non-patterned side of the metasurface, improving by a factor between 2 and 3 the results of the EOT resonance in any of the considered scenarios. This can be explained by the comparatively narrower linewidth of the anomalous EOT resonance. The results presented expand the reach of subwavelength HAs for sensing applications by considering the anomalous EOT regime that is usually overlooked in the literature.

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6

Sun, Linshan, Bo Zhao, Jiaqi Yuan, Yanrong Zhang, Ming Kang, and Jing Chen. "Optical resonance in inhomogeneous parity-time symmetric systems." Chinese Optics Letters 19, no. 7 (2021): 073601. http://dx.doi.org/10.3788/col202119.073601.

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7

HORING, NORMAN J. MORGENSTERN, and H. L. CUI. "SURFACE-PLASMON-RESONANCE BASED OPTICAL SENSING." International Journal of High Speed Electronics and Systems 18, no. 01 (March 2008): 71–78. http://dx.doi.org/10.1142/s012915640800514x.

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Over the past twenty years, surface plasmon resonance has been developed as an effective technique for use in real-time biotechnological measurements of the kinetics of label-free biomolecular interactions with high sensitivity.1-16 On a fundamental level, it is the dielectric-imaging involvement of the adsorbed biomolecular layer (DNA for example) in shifting the surface plasmon resonance (SPR) frequency by means of electrostatic coupling at the interface with the metal film substrate that facilitates SPR-based optical sensing. Of course, there are various factors that can influence surface plasmon resonance, including plasma nonlocality, phonons, multiplicity of layers, all of which should be carefully examined. Moreover, tunable SPR phenomenology based on the role of a magnetic field (both classically and quantum mechanically) merits consideration in regard to the field's effects on both the substrate17 and the adsorbed layer(s).18 This paper is focused on the establishment of the basic equations governing surface plasmon resonance, incorporating all the features cited above. In it, we present the formulation and closed-form analytical solution for the dynamic, nonlocal screening function of a thick substrate material with a thin external adsorbed layer, which can be extended to multiple layers. The result involves solution of the random phase approximation (RPA) integral equation for the spatially inhomogeneous system of the substrate and adsorbed layer,19-25 given the individual polarizabilities of the thick substrate and the layer. (This is tantamount to the space-time matrix inversion of the inhomogeneous joint dielectric function of the system.) The frequency poles of the resulting screening function determine the shifted surface (and bulk) plasmon resonances and the associated residues at the resonance frequencies provide their relative excitation amplitudes. The latter represent the response strengths of the surface plasmon resonances (oscillator strengths), and will be of interest in optimizing the materials to be employed.

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8

Babunts, R. A., Yu A. Uspenskaya, A. S. Gurin, A. P. Bundakova, G. V. Mamin, A. N. Anisimov, E. N. Mokhov, and P. G. Baranov. "Manifestations of Electron–Nuclear Interactions in the High-Frequency ENDOR/ODMR Spectra for Triplet Si–C Divacancies in 13C-Enriched SiC." JETP Letters 116, no. 7 (October 2022): 485–92. http://dx.doi.org/10.1134/s0021364022601865.

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The frequencies of electron–nuclear interactions with 13C and 29Si nuclei on remote coordination spheres are determined in triplet spin centers in the form of neutral VSi–VC divacancies in a silicon carbide crystal of the hexagonal polytype 6H–SiC enriched tenfold in the 13C isotope. High-frequency electron–nuclear double resonance and optically detected magnetic resonance under conditions of optical alignment of spins are used. Oscillations of the electron spin density on 29Si and 13C nuclei are found. Nuclear magnetic resonance transitions at Larmor and close-to-Larmor frequencies of 13C and 29Si cause giant changes in the populations of spin sublevels with the transformation of these resonances into electron paramagnetic resonance and optical signals.

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9

Husnik, Martin, Felix von Cube, Stephan Irsen, Stefan Linden, Jens Niegemann, Kurt Busch, and Martin Wegener. "Comparison of electron energy-loss and quantitative optical spectroscopy on individual optical gold antennas." Nanophotonics 2, no. 4 (October 1, 2013): 241–45. http://dx.doi.org/10.1515/nanoph-2013-0031.

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AbstractUsing a rather large set of different individual metallic optical antennas, we compare directly measured electron energy-loss spectra with measured quantitative optical extinction and scattering cross-section spectra on the identical antennas. All antenna resonances lie near 1.4 µm wavelength. In contrast to other reports, we find identical resonance positions for electrons and photons to within the experimental errors. We discuss possible artifacts which can lead to seemingly different resonance positions in experiments. Our experimental results agree well with complete numerical calculations of both sorts of spectra.

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10

Zheng, Ningxuan, Wenliang Liu, Jizhou Wu, Yuqing Li, Vladimir Sovkov, and Jie Ma. "Parametric Excitation of Ultracold Sodium Atoms in an Optical Dipole Trap." Photonics 9, no. 7 (June 22, 2022): 442. http://dx.doi.org/10.3390/photonics9070442.

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Parametric modulation is an effective tool to measure the trap frequency and investigate the atom dynamics in an optical dipole trap or lattices. Herein, we report on experimental research of parametric resonances in an optical dipole trap. By modulating the trapping potential, we have measured the atomic loss dependence on the frequency of the parametric modulations. The resonance loss spectra and the evolution of atom populations at the resonant frequency have been demonstrated and compared under three modulation waveforms (sine, triangle and square waves). A phenomenological theoretical simulation has been performed and shown good accordance with the observed resonance loss spectra and the evolution of atom populations. The theoretical analysis can be easily extended to a complex waveform modulation and reproduce enough of the experiments.

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11

Распопин, Г. К., Д. Р. Макашев, А. В. Борисов, and Ю. В. Киcтенев. "Исследование высокочастотных акустических резонансов оптико-акустического детектора с дифференциальными резонаторами Гельмгольца." Оптика и спектроскопия 130, no. 6 (2022): 826. http://dx.doi.org/10.21883/os.2022.06.52622.28-22.

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A numerical study of acoustic resonances of an optical-acoustic detector (OAD) with differential cylindrical Helmholtz resonators with variations in their basic parameters has been carried out. The dependences of the Q-factor of acoustic resonance and the resonant frequency on the geometric parameters of the OAD were obtained and analyzed. The obtained results can be used in development of optical-acoustic gas analyzers.

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12

Ren, Xiao bin, Kun Ren, Ying Zhang, Cheng guo Ming, and Qun Han. "Multiple Fano resonances with flexible tunablity based on symmetry-breaking resonators." Beilstein Journal of Nanotechnology 10 (December 11, 2019): 2459–67. http://dx.doi.org/10.3762/bjnano.10.236.

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A symmetry-breaking nanostructure is proposed to achieve multiple Fano resonances. The nanostructure consists of an asymmetric ring resonator coupled to a plasmonic waveguide. The broken symmetry is introduced by deviating the centers of regular ring. New resonant modes that are not accessible through a regular symmetric ring cavity are excited. Thus, one asymmetric cavity can provide more than one resonant mode with the same mode order. As a result, the interval of Fano resonances is greatly reduced. By combining different rings with different degrees of asymmetry, multiple Fano resonances are generated. Those Fano resonances have different dependences on structural parameters due to their different physical origin. The resonance frequency and resonance peak number can be arbitrarily adjusted by changing the degree of asymmetry. This research may provide new opportunities to design on-chip optical devices with great tuning performance.

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13

Wang, Guangdong, and Zhanghua Han. "Investigations on the optical forces from three mainstream optical resonances in all-dielectric nanostructure arrays." Beilstein Journal of Nanotechnology 14 (June 2, 2023): 674–82. http://dx.doi.org/10.3762/bjnano.14.53.

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Light can exert radiation pressure on any object it encounters, and the resulting optical force can be used to manipulate particles at the micro- or nanoscale. In this work, we present a detailed comparison through numerical simulations of the optical forces that can be exerted on polystyrene spheres of the same diameter. The spheres are placed within the confined fields of three optical resonances supported by all-dielectric nanostructure arrays, including toroidal dipole (TD), anapoles, and quasi-bound states in continuum (quasi-BIC) resonances. By elaborately designing the geometry of a slotted-disk array, three different resonances can be supported, which are verified by the multipole decomposition analysis of the scattering power spectrum. Our numerical results show that the quasi-BIC resonance can produce a larger optical gradient force, which is about three orders of magnitude higher than those generated from the other two resonances. The large contrast in the optical forces generated with these resonances is attributed to a higher electromagnetic field enhancement provided by the quasi-BIC. These results suggest that the quasi-BIC resonance is preferred when one employs all-dielectric nanostructure arrays for the trapping and manipulation of nanoparticles by optical forces. It is important to use low-power lasers to achieve efficient trapping and avoid any harmful heating effects.

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14

Ali, Farhan, and Serap Aksu. "A Narrow-Band Multi-Resonant Metamaterial in Near-IR." Materials 13, no. 22 (November 14, 2020): 5140. http://dx.doi.org/10.3390/ma13225140.

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We theoretically investigate a multi-resonant plasmonic metamaterial perfect absorber operating between 600 and 950 nm wavelengths. The presented device generates 100% absorption at two resonance wavelengths and delivers an ultra-narrow band (sub-20 nm) and high quality factor (Q=44) resonance. The studied perfect absorber is a metal–insulator–metal configuration where a thin MgF2 spacer is sandwiched between an optically thick gold layer and uniformly patterned gold circular nanodisc antennas. The localized and propagating nature of the plasmonic resonances are characterized and confirmed theoretically. The origin of the perfect absorption is investigated using the impedance matching and critical coupling phenomenon. We calculate the effective impedance of the perfect absorber and confirm the matching with the free space impedance. We also investigate the scattering properties of the top antenna layer and confirm the minimized reflection at resonance wavelengths by calculating the absorption and scattering cross sections. The excitation of plasmonic resonances boost the near-field intensity by three orders of magnitude which enhances the interaction between the metamaterial surface and the incident energy. The refractive index sensitivity of the perfect absorber could go as high as S=500 nm/RIU. The presented optical characteristics make the proposed narrow-band multi-resonant perfect absorber a favorable platform for biosensing and contrast agent based bioimaging.

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15

Wang, Yanhua, Zhihua Kang, Li Yang, Qiang Ma, Yu Wang, Yabin Dong, and Junmin Wang. "Time response of spin-polarized rubidium thermal gas with radio-frequency pulse driving." Journal of Applied Physics 131, no. 13 (April 7, 2022): 134402. http://dx.doi.org/10.1063/5.0082535.

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The time evolution of the polarization of a rubidium atom spin ensemble driven by a resonant radio-frequency (RF) magnetic field is analyzed based on the rate equation. A simple optical pumping experimental system is constructed and the time response of the rubidium atomic ensemble is demonstrated by recording the transmitted intensity of pumping light. In the steady-state response, the polarization difference between the optical pumping steady state and the magnetic resonance steady state depends on the optical pumping power and RF magnetic intensity. We can obtain the optimal power value corresponding to the maximum polarization difference. In terms of transient response, where the intensity of RF magnetic field is too weak to observe Rabi oscillations, two decay processes between magnetic resonance and optical pumping steady states are monitored. The decay time from magnetic resonance steady state to optical pumping steady state depends on the optical pumping rate and the spin relaxation rate. The decay time from optical pumping steady state to magnetic resonance steady state depends on the optical pumping rate, the RF driving rate, and the spin relaxation rate. The scale factor of pumping rate to pumping power is obtained, in addition to that of RF driving rate to the RF magnetic field. It can provide an intuitive understanding of the spin dynamic evolution of the polarized atomic ensemble.

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16

Mun, Sang-Eun, Chulsoo Choi, Jongwoo Hong, and Byoungho Lee. "Broadband wavelength demultiplexer using Fano-resonant metasurface." Nanophotonics 9, no. 5 (February 6, 2020): 1015–22. http://dx.doi.org/10.1515/nanoph-2019-0492.

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AbstractFano resonance, one of the interesting resonance phenomena in physics, provides versatile applications when combined with a concept of metasurface in nanophotonics. Fano-resonant metasurface (FRM) is attracting a lot of attention due to its superior narrowband characteristics as well as design freedom of metasurfaces in nanoscale. However, only the control of apparent asymmetric spectral nature of Fano resonance has been focused at applications such as optical sensors, as the amplitude feature of Fano resonances is relatively easy to control and can be measured by an experimental setup. Here, a method for modulating the phase information of FRM by both simulation and experiment is demonstrated. As a proof of concept, an optical demultiplexer, which can divide four target wavelengths in different directions of free space, is verified experimentally. It covers a broadband wavelength range of more than 350 nm in the near-infrared region with extremely small full-width at half-maximum. This approach can offer the complete control of FRM for a wide range of applications, including optical multiplexers, routers, filters, and switches, beyond conventional applications that have been limited to the amplitude control of Fano resonance.

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17

Rahman, Atta Ur, Junping Geng, Richard W. Ziolkowski, Tao Hang, Qaisar Hayat, Xianling Liang, Sami Ur Rehman, and Ronghong Jin. "Photoluminescence Revealed Higher Order Plasmonic Resonance Modes and Their Unexpected Frequency Blue Shifts in Silver-Coated Silica Nanoparticle Antennas." Applied Sciences 9, no. 15 (July 26, 2019): 3000. http://dx.doi.org/10.3390/app9153000.

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Higher order plasmonic resonance modes and their frequency blue shifts in silver-coated silica nanoparticle antennas are studied. Synthesizing them with a wet chemistry method, silica (SiO2) nanoparticles were enclosed within silver shells with different thicknesses. A size-dependent Drude model was used to model the plasmonic shells and their optical losses. Two higher order plasmonic resonances were identified for each case in these simulations. The photoluminescence spectroscopy (PL) experimental results, in good agreement with their simulated values, confirmed the presence of those two higher order resonant modes and their resonance frequencies. When compared with pure metallic Ag nanoparticles, size-induced blue shifts were observed in these resonance frequencies.

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18

Chang, Shengyuan, Xuexue Guo, and Xingjie Ni. "Optical Metasurfaces: Progress and Applications." Annual Review of Materials Research 48, no. 1 (July 2018): 279–302. http://dx.doi.org/10.1146/annurev-matsci-070616-124220.

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A metasurface is an artificial nanostructured interface that has subwavelength thickness and that manipulates light by spatially arranged meta-atoms—fundamental building blocks of the metasurface. Those meta-atoms, usually consisting of plasmonic or dielectric nanoantennas, can directly change light properties such as phase, amplitude, and polarization. As a derivative of three-dimensional (3D) metamaterials, metasurfaces have been emerging to tackle some of the critical challenges rooted in traditional metamaterials, such as high resistive loss from resonant plasmonic components and fabrication requirements for making 3D nanostructures. In the past few years, metasurfaces have achieved groundbreaking progress, providing unparalleled control of light, including constructing arbitrary wave fronts and realizing active and nonlinear optical effects. This article provides a systematic review of the current progress in and applications of optical metasurfaces, as well as an overview of metasurface building blocks based on plasmonic resonances, Mie resonance, and the Pancharatnam-Berry phase.

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19

Dong, Wei Jie, Meng Wei Liu, and Cui Yan. "Measurement and Visualization of Dynamics of Piezoelectric Microcantilever." Key Engineering Materials 437 (May 2010): 30–34. http://dx.doi.org/10.4028/www.scientific.net/kem.437.30.

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Methods for measuring the resonant frequencies and visualizing the motion of the Pb(Zr0.5Ti0.5)O3 microcantilever are investigated. Considering the two-segment structure of the microcantilever, a self-exiting self-sensing method is proposed to obtain the fundamental resonant frequency. An optical system consisting of light microscope, CCD camera and video card is established to visualize the first two vibration mode shapes. The theoretical, measured and visualized first resonance of one micocantilever is 17.28 kHz, 17 kHz and 17.8 kHz, respectively. A theoretical second resonance of 84.16 kHz is seen at 71.9 kHz. The proposed method is valid for measuring and visualizing low resonances of active micro structure.

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20

KASAHARA, Shunji, Masaaki BABA, and Hajime KATÔ. "Doppler-free Optical-Optical Double Resonance Spectroscopy." Journal of the Spectroscopical Society of Japan 46, no. 2 (1997): 70–82. http://dx.doi.org/10.5111/bunkou.46.70.

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21

Alexeyev, C. N., B. P. Lapin, and M. A. Yavorsky. "Resonance optical activity in multihelicoidal optical fibers." Optics Letters 41, no. 5 (February 24, 2016): 962. http://dx.doi.org/10.1364/ol.41.000962.

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22

Wulong Zhao, Wulong Zhao, Hongjun Liu Hongjun Liu, Qibing Sun Qibing Sun, Nan Huang Nan Huang, Zhaolu Wang Zhaolu Wang, Jing Han Jing Han, and and Heng Sun and Heng Sun. "Extracting signal via stochastic resonance in the semiconductor optical amplifier." Chinese Optics Letters 14, no. 8 (2016): 081901–81905. http://dx.doi.org/10.3788/col201614.081901.

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23

Hong-jie, Jiang, Ding Liang-en, Xia Hui-rong, and Wang Zu-geng. "Frequency-modulation optical-optical triple-resonance optical heterodyne spectroscopy." Acta Physica Sinica (Overseas Edition) 4, no. 12 (December 1995): 889–98. http://dx.doi.org/10.1088/1004-423x/4/12/002.

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24

Guo, Zhixiong, and Haiyong Quan. "Energy Transfer to Optical Microcavities With Waveguides." Journal of Heat Transfer 129, no. 1 (July 21, 2006): 44–52. http://dx.doi.org/10.1115/1.2401197.

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Micro/nanoscale radiation energy transfer is investigated in optical microcavity and waveguide coupling structures working on whispering-gallery mode optical resonances. The finite element method is employed for solving the Helmholtz equations that govern the energy transfer and time-harmonics electromagnetic (EM) wave propagation. The maximum element size concept is introduced for the numerically sensitive subdomains where local mesh refining is needed because of the presence of intensified EM fields. The results show that the energy storage capability of a resonant microcavity is predominantly determined by the cavity size. The stored energy in the 10μm diameter microcavity considered is several orders of magnitude larger than that in the 2μm diameter microcavity. The gap between a microcavity and its light-delivery waveguide has a substantial effect on the energy coupling from the waveguide to the microcavity and consequently influences significantly energy storage in the microcavity. An optimal gap is found for maximum energy storage and most efficient energy coupling. This optimal gap dimension depends not only on the configurations of the microcavity and waveguide, but also on the resonance wavelength. With increasing gap the quality factor increases exponentially and quickly saturates as the gap approaches to one wavelength involved. The submicron/nanoscale gap is crucial for generating quality resonances as well as for efficient energy transfer and coupling.

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25

An, Panlong, Ruijuan Zhao, and Yaoying Liu. "Simulation and optimization of spectral parameters of resonant optical gyroscope." AIP Advances 12, no. 10 (October 1, 2022): 105312. http://dx.doi.org/10.1063/5.0102222.

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As a new inertial navigation device, the resonant optical gyroscope offers advantages that include high precision, device integration, impact resistance, and solid-state realization. This device will be widely used in future military and civil applications. Following consideration of the factors that affect accuracy improvement of resonant fiber optic gyroscopes, the relationships among the insertion loss, coupling coefficient, and unit length loss of the cavity fiber and the resonance depth, full width at half maximum, and fineness of the transmission spectrum line are analyzed. To improve the transmission spectrum’s resonance depth, the coupling coefficient should be controlled at 0.2 and the optical coupler insertion loss should be reduced as far as possible. Additionally, the laser linewidth effects on the transmission spectrum and the limit sensitivity are analyzed. It is found that if the laser linewidth of the resonant optical gyroscope is less than 100 kHz, it can meet the resonance depth requirements, thus, providing a technical reference for further research into integrated optical waveguide gyroscopes.

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26

Pike, Rosemary E., Wesley C. Fraser, Kathryn Volk, J. J. Kavelaars, Michaël Marsset, Nuno Peixinho, Megan E. Schwamb, et al. "Col-OSSOS: The Distribution of Surface Classes in Neptune's Resonances." Planetary Science Journal 4, no. 10 (October 1, 2023): 200. http://dx.doi.org/10.3847/psj/ace2c2.

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Abstract The distribution of surface classes of resonant trans-Neptunian objects (TNOs) provides constraints on the protoplanetesimal disk and giant planet migration. To better understand the surfaces of TNOs, the Colours of the Outer Solar System Origins Survey acquired multiband photometry of 102 TNOs and found that the surfaces of TNOs can be well described by two surface classifications: BrightIR and FaintIR. These classifications both include optically red members and are differentiated predominantly based on whether their near-infrared spectral slope is similar to their optical spectral slope. The vast majority of cold classical TNOs, with dynamically quiescent orbits, have the FaintIR surface classification, and we infer that TNOs in other dynamical classifications with FaintIR surfaces share a common origin with the cold classical TNOs. Comparison between the resonant populations and the possible parent populations of cold classical and dynamically excited TNOs reveal that the 3:2 has minimal contributions from the FaintIR class, which could be explained by the ν 8 secular resonance clearing the region near the 3:2 before any sweeping capture occurred. Conversely, the fraction of FaintIR objects in the 4:3 resonance, 2:1 resonance, and the resonances within the cold classical belt suggest that the FaintIR surface formed in the protoplanetary disk between ≳34.6 and ≲47 au, though the outer bound depends on the degree of resonance sweeping during migration. The presence and absence of the FaintIR surfaces in Neptune’s resonances provides critical constraints for the history of Neptune’s migration, the evolution of the ν 8, and the surface class distribution in the initial planetesimal disk.

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27

Nesterenko, D. V. "Resonance characteristics of transmissive optical filters based on metal/dielectric/metal structures." Computer Optics 44, no. 2 (April 2020): 219–28. http://dx.doi.org/10.18287/2412-6179-co-681.

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The resonance characteristics of the Fabry-Pérot resonator modes supported by metal/dielectric/metal planar structures are studied in the case of absorbing media for near-to-normal light incidence. Approximations based on rigorous solution and field-transfer model for the field and resonance line shapes in spectra are attributed to the class of Fano and Lorentz resonances. The analytical expressions are obtained for the propagation constant and field enhancement of the mode, width, height and slope of resonance line shapes in spectra as functions of structural parameters. With estimation of field characteristics of the fabricated loss structures based on aluminum and quartz, the peaks in the transmission spectra can be attributed to the excitation of Fabry-Pérot modes. Fundamental characterization of Fabry-Pérot resonances may find applications in optical processing and sensing.

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28

Hairol Aman, Mohammad Amirul, Fakhrurrazi Ahmad Noorden, Faris Azim Ahmad Fajri, Muhammad Zamzuri Abdul Kadir, Wan Hazman Danial, and Suzairi Daud. "NUMERICAL SIMULATION OF ENHANCED OPTICAL FREE SPECTRAL RANGE THROUGH INTEGRATED FANO-MICRORING CONFIGURATION." Malaysian Journal of Science 42, no. 3 (October 31, 2023): 13–19. http://dx.doi.org/10.22452/mjs.vol42no3.3.

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A numerical analysis of the integrated Fano-microring (IFM) racetrack resonator spectrum was performed to investigate the enhancement of the optical system’s free spectral range (FSR). The FSR is an important optical property which can contribute to the high sensitivity of optical devices. The IFM refers to the combination of Fano resonance produced in the output spectrum through the interaction of Fabry–Perot resonance and circulation resonance. This work focuses on the study of inducing Fano resonance in the microring resonator to optimize the FSR of the system. The results show that the integration of two resonances can produce a Vernier output spectrum, which significantly enhanced the FSR of the system without any need for additional ring waveguides. This work also compared the IFM resonance with the conventional microring resonance. In this simulation, the optimized FSR obtained by the IFM configuration was 266.55 nm, which is five times higher than the conventional microring configuration.

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29

GUIBAL, S., L. GUIDONI, J. ZACHOROWSKI, J. Y. COURTOIS, P. VERKERK, and G. GRYNBERG. "STIMULATED SCATTERING IN AN OPTICAL LATTICE." Journal of Nonlinear Optical Physics & Materials 05, no. 04 (October 1996): 851–61. http://dx.doi.org/10.1142/s021886359600060x.

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We present a study of pump-probe spectroscopy experiments in an optical lattice. The probe transmission spectrum contains three types of resonances similar to those found in usual nonlinear media: Raman, Brillouin and Rayleigh resonances. We show evidence of the existence of a propagating elementary excitation in the lattice which involves no interaction between the particles and lead to a Brillouin-like scattering. We discuss the central Rayleigh resonance and show that its shape is sensitive to the radiation pressure.

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Bradshaw, David S., Kayn A. Forbes, and David L. Andrews. "Off-Resonance Control and All-Optical Switching: Expanded Dimensions in Nonlinear Optics." Applied Sciences 9, no. 20 (October 11, 2019): 4252. http://dx.doi.org/10.3390/app9204252.

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The theory of non-resonant optical processes with intrinsic optical nonlinearity, such as harmonic generation, has been widely understood since the advent of the laser. In general, such effects involve multiphoton interactions that change the population of each input optical mode or modes. However, nonlinear effects can also arise through the input of an off-resonant laser beam that itself emerges unchanged. Many such effects have been largely overlooked. Using a quantum electrodynamical framework, this review provides detail on such optically nonlinear mechanisms that allow for a controlled increase or decrease in the intensity of linear absorption and fluorescence and in the efficiency of resonance energy transfer. The rate modifications responsible for these effects were achieved by the simultaneous application of an off-resonant beam with a moderate intensity, acting in a sense as an optical catalyst, conferring a new dimension of optical nonlinearity upon photoactive materials. It is shown that, in certain configurations, these mechanisms provide the basis for all-optical switching, i.e., the control of light-by-light, including an optical transistor scheme. The conclusion outlines other recently proposed all-optical switching systems.

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Ozcariz, Aritz. "Development of Copper Oxide Thin Film for Lossy Mode Resonance-Based Optical Fiber Sensor." Proceedings 2, no. 13 (November 28, 2018): 893. http://dx.doi.org/10.3390/proceedings2130893.

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In this work we present the study of copper(II) oxide thin films for the fabrication of lossy mode resonance-based (LMR) optical fiber sensors. This material has proven to be capable of generating such resonances with a promising result. Their optimal optical properties have allowed the achievement of a sensitivity of 7234 nm/RIU, higher than that obtained with other metal oxides such a SnO2, indium tin oxide (ITO), aluminum doped zinc oxide (AZO) or indium-gallium-zinc oxide (IGZO). The use of this new film may facilitate the use of LMR based sensors for applications that require maximum sensitivity and stability.

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Yuan, Zong Heng, Dong Dong Zhu, and Hong Ru Wang. "Comparison of Resonance Characteristics for Two Metal Nano-Optical Antennas." Applied Mechanics and Materials 138-139 (November 2011): 894–99. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.894.

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In this paper dipole type optical antenna and V type optical antenna are designed using gold and glass substrates, we compared their resonance properties by finite-difference time-domain (FDTD) method, calculated and analyzed their distribution and field enhancement effects contrastively. The results showed that in the same projected length, the resonant frequency of dipole type optical antenna was higher than the V type optical antenna, while the resonance enhancement factor was lower than the V type optical antenna. These have certain reference significance for researching characteristics of nanoantenna based on surface plasma.

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33

zu Putlitz, G. "Optical double resonance and optical pumping in Heidelberg." Annales de Physique 10, no. 6 (1985): 571–88. http://dx.doi.org/10.1051/anphys:01985001006057100.

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Marti, Lea, Nergiz Şahin Solmaz, Michal Kern, Anh Chu, Reza Farsi, Philipp Hengel, Jialiang Gao, et al. "Towards optical MAS magnetic resonance using optical traps." Journal of Magnetic Resonance Open 18 (March 2024): 100145. http://dx.doi.org/10.1016/j.jmro.2023.100145.

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35

Singh, Ranjan, Jie Xiong, Abul K. Azad, Hao Yang, Stuart A. Trugman, Q. X. Jia, Antoinette J. Taylor, and Hou-Tong Chen. "Optical tuning and ultrafast dynamics of high-temperature superconducting terahertz metamaterials." Nanophotonics 1, no. 1 (July 1, 2012): 117–23. http://dx.doi.org/10.1515/nanoph-2012-0007.

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AbstractThrough the integration of semiconductors or complex oxides into metal resonators, tunable metamaterials have been achieved by a change of environment using an external stimulus. Metals provide high conductivity to realize a strong resonant response in metamaterials; however, they contribute very little to the tunability. The complex conductivity in high-temperature superconducting films is highly sensitive to external perturbations, which provides new opportunities in achieving tunable metamaterials resulting directly from the resonant elements. Additionally, superconducting metamaterials are expected to enable strong nonlinear response and quantum effects, particularly when Josephson junctions are integrated into the metamaterial resonant elements. Here we demonstrate ultrafast dynamical tuning of resonance in the terahertz (THz) frequency range in YBa2Cu3O7-δ (YBCO) split-ring resonator (SRR) arrays excited by near infrared femtosecond laser pulses. The photoexcitation breaks the superconducting Cooper pairs to create quasiparticles. This dramatically modifies the imaginary part of the complex conductivity and consequently the metamaterial resonance on an ultrafast timescale, although the real conductivity does not change significantly. We observed resonance switching accompanied by substantial frequency tuning as a function of photoexcitation fluence, which also strongly depends on the nanoscale thickness of the superconducting films. All of our experimental results agree with calculations using an analytical model, which takes into account the contributions of the complex conductivity of the YBCO films to SRR resistance and kinetic inductance. The theoretical calculations reveal that the increasing SRR resistance upon increasing photoexcitation fluence is responsible for the reduction of resonance strength, and changes in both the resistance and kinetic inductance cause the resonance frequency shifts.

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Ekimov, A. I., and V. I. Safarov. "Optical Electron-Nuclear Resonance in Semiconductors." JETP Letters 118, S1 (December 2023): S21—S22. http://dx.doi.org/10.1134/s002136402313009x.

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A considerable number of investigations have by now been made on optical pumping of spin-oriented electrons in semiconductors. The optical-pumping method makes it possible to produce easily a high polarization of the electron spins in the conduction band, and to detect it optically [1–3]. The use of this method for the investigation of semiconductors turned out to be very fruitful; the spin orientation of the minority [1–3] and majority [4] carriers was determined, the lifetimes of the non-equilibrium electrons were measured [2, 3, 5], the mechanisms of spin relaxation of “cold” [2, 5] and “hot” [2, 6] electrons were investigated, spin orientation of excitons was effected [7], and electron paramagnetic resonance with non-equilibrium electrons was registered [8].

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Gan Xuetao, 甘雪涛, and 赵建林 Zhao Jianlin. "Resonance Lineshapes in Optical Cavity." Acta Optica Sinica 41, no. 8 (2021): 0823007. http://dx.doi.org/10.3788/aos202141.0823007.

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38

Shou-Mian, Yu, and Yu Tian. "Resonance modes in optical fibres." Chinese Physics 11, no. 10 (October 2002): 981–87. http://dx.doi.org/10.1088/1009-1963/11/10/301.

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Schiller, Stephan, and R. L. Byer. "Subwavelength optical magnetic-resonance imaging." Journal of the Optical Society of America A 9, no. 5 (May 1, 1992): 683. http://dx.doi.org/10.1364/josaa.9.000683.

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Ellinas, D., S. M. Barnett, and M. A. Dupertuis. "Berry’s phase in optical resonance." Physical Review A 39, no. 7 (April 1, 1989): 3228–37. http://dx.doi.org/10.1103/physreva.39.3228.

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Burd, S. C., P. J. W. du Toit, and H. Uys. "Coupled optical resonance laser locking." Optics Express 22, no. 21 (October 7, 2014): 25043. http://dx.doi.org/10.1364/oe.22.025043.

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42

Suter, Dieter. "Optical detection of magnetic resonance." Magnetic Resonance 1, no. 1 (June 30, 2020): 115–39. http://dx.doi.org/10.5194/mr-1-115-2020.

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Abstract. The combination of magnetic resonance with laser spectroscopy provides some interesting options for increasing the sensitivity and information content of magnetic resonance. This review covers the basic physics behind the relevant processes, such as angular momentum conservation during absorption and emission. This can be used to enhance the polarization of the spin system by orders of magnitude compared to thermal polarization as well as for detection with sensitivities down to the level of individual spins. These fundamental principles have been used in many different fields. This review summarizes some of the examples in different physical systems, including atomic and molecular systems, dielectric solids composed of rare earth, and transition metal ions and semiconductors.1

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Agayan, Rodney R., Frederick Gittes, Raoul Kopelman, and Christoph F. Schmidt. "Optical trapping near resonance absorption." Applied Optics 41, no. 12 (April 20, 2002): 2318. http://dx.doi.org/10.1364/ao.41.002318.

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Johannessen, Christian, Peter C. White, and Salim Abdali. "Resonance Raman Optical Activity and Surface Enhanced Resonance Raman Optical Activity Analysis of Cytochromec." Journal of Physical Chemistry A 111, no. 32 (August 2007): 7771–76. http://dx.doi.org/10.1021/jp0705267.

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Vershovskii A. K. and Petrenko M. V. "Frequency transfer of an optically detected magnetic resonance and observation of the Hanle effect in a nonzero magnetic field." Optics and Spectroscopy 131, no. 1 (2023): 3. http://dx.doi.org/10.21883/eos.2023.01.55509.4439-22.

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The method of transferring the frequency of an optically detected magnetic resonance both up and down by an arbitrary value is implemented in a single-beam optical pumping scheme by modulating the linearly polarized beam component. The possibility of observing the Hanle resonance in a magnetic field virtually zeroed upon transition to a rotating coordinate system is demonstrated. A model experiment was carried out, confirming the fundamental feasibility and effectiveness of the method. Keywords: Optically detectable magnetic resonance, optical resonance frequency transfer, Hanle effect, Bell-Bloom scheme, quantum magnetometer.

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Bonino, Vittorio, and Angelo Angelini. "Multipolar Analysis in Symmetrical Meta-Atoms Sustaining Fano Resonances." Optics 5, no. 2 (April 15, 2024): 238–47. http://dx.doi.org/10.3390/opt5020017.

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We present an optical metasurface with symmetrical individual elements sustaining Fano resonances with high Q-factors. This study combines plane-wave illumination and modal analysis to investigate the resonant behavior that results in a suppression of the forward scattering, and we investigate the role of the lattice constant on the excited multipoles and on the spectral position and Q-factor of the Fano resonances, revealing the nonlocal nature of the resonances. The results show that the intrinsic losses play a crucial role in modulating the resonance amplitude in specific conditions and that the optical behavior of the device is extremely sensitive to the pitch of the metasurface. The findings highlight the importance of near-neighbor interactions to achieve high Q resonances and offer an important tool for the design of spectrally tunable metasurfaces using simple geometries.

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Takeda, Kazuyuki, Kentaro Nagasaka, Atsushi Noguchi, Rekishu Yamazaki, Yasunobu Nakamura, Eiji Iwase, Jacob M. Taylor, and Koji Usami. "Electro-mechano-optical detection of nuclear magnetic resonance." Optica 5, no. 2 (February 2, 2018): 152. http://dx.doi.org/10.1364/optica.5.000152.

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48

Gric, Tatjana, and Edik Rafailov. "On the Study of Advanced Nanostructured Semiconductor-Based Metamaterial." Applied Sciences 12, no. 12 (June 20, 2022): 6250. http://dx.doi.org/10.3390/app12126250.

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Tunable metamaterials belonging to the class of different reconfigurable optical devices have proved to be an excellent candidate for dynamic and efficient light control. However, due to the consistent optical response of metals, there are some limitations aiming to directly engineer electromagnetic resonances of widespread metal-based composites. The former is accomplished by altering the features or structures of substrates around the resonant unit cells only. In this regard, the adjusting of metallic composites has considerably weak performance. Herein, we make a step forward by providing deep insight into a direct tuning approach for semiconductor-based composites. The resonance behavior of their properties can be dramatically affected by manipulating the distribution of free carriers in unit cells under an applied voltage. The mentioned approach has been demonstrated in the case of semiconductor metamaterials by comparing the enhanced propagation of surface plasmon polaritons with a conventional semiconductor/air case. Theoretically, the presented approach provides a fertile ground to simplify the configuration of engineerable composites and provides a fertile ground for applications in ultrathin, linearly tunable, and on-chip integrated optical components. These include reconfigurable ultrathin lenses, nanoscale spatial light modulators, and optical cavities with switchable resonance modes.

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Krylov, Igor R., Uliana V. Prokhorova, Vasiliy A. Stolyarov, Ekaterina A. Efremova, Alexander A. Zinchik, Egor V. Shalymov, Vladislav I. Shoev, Dmitriy V. Masygin, and Vladimir Yu Venediktov. "Peculiarities of the Resonant Response of a Subwavelength Double Grating with Optical PT-Symmetry." Photonics 10, no. 7 (June 24, 2023): 721. http://dx.doi.org/10.3390/photonics10070721.

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In this paper, we study the features of the resonant response of a system consisting of two subwavelength one-dimensional periodic structures, considering the dispersion of the refractive index in the presence of optical PT-symmetry for TM polarization. For the considered structure in the green wavelength range, two possible resonance lines were identified at 514.86 nm and 518.5 nm. Ultra-narrow resonances (FWHM of 0.00015 nm) have been obtained for transmitted and reflected waves, and a significant enhancement of the resonant response has been achieved (up to 105 times). The dependence of the system’s optical response on the relative position of its two sub-wavelength gratings and the magnitude of the amplification coefficient of the active part was investigated. This can be used to tune the spectral characteristics of filters, modulate the optical radiation, and create optomechanical sensors such as strain gauges.

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Śmietana, Mateusz, Bartosz Janaszek, Katarzyna Lechowicz, Petr Sezemsky, Marcin Koba, Dariusz Burnat, Marcin Kieliszczyk, Vitezslav Stranak, and Paweł Szczepański. "Electro-optically modulated lossy-mode resonance." Nanophotonics 11, no. 3 (December 15, 2021): 593–602. http://dx.doi.org/10.1515/nanoph-2021-0687.

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Abstract Sensitivity, selectivity, reliability, and measurement range of a sensor are vital parameters for its wide applications. Fast growing number of various detection systems seems to justify worldwide efforts to enhance one or some of the parameters. Therefore, as one of the possible solutions, multi-domain sensing schemes have been proposed. This means that the sensor is interrogated simultaneously in, e.g., optical and electrochemical domains. An opportunity to combine the domains within a single sensor is given by optically transparent and electrochemically active transparent conductive oxides (TCOs), such as indium tin oxide (ITO). This work aims to bring understanding of electro-optically modulated lossy-mode resonance (LMR) effect observed for ITO-coated optical fiber sensors. Experimental research supported by numerical modeling allowed for identification of the film properties responsible for performance in both domains, as well as interactions between them. It has been found that charge carrier density in the semiconducting ITO determines the efficiency of the electrochemical processes and the LMR properties. The carrier density boosts electrochemical activity but reduces capability of electro-optical modulation of the LMR. It has also been shown that the carrier density can be tuned by pressure during magnetron sputtering of ITO target. Thus, the pressure can be chosen as a parameter for optimization of electro-optical modulation of the LMR, as well as optical and electrochemical responses of the device, especially when it comes to label-free sensing and biosensing.

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