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Artykuły w czasopismach na temat „Chiral Plasmonic Nano Shells”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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1

Valagiannopoulos, Constantinos, S. Ali Hassani Gangaraj, and Francesco Monticone. "Zeeman gyrotropic scatterers." Nanomaterials and Nanotechnology 8 (January 1, 2018): 184798041880808. http://dx.doi.org/10.1177/1847980418808087.

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Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials have been the subject of intense efforts in the past couple of decades. In this article, we present a full analysis of the unusual and extreme scattering properties of an important class of complex scatterers, namely, gyrotropic cylindrical bodies, including both homogeneous and core–shell configurations. Our study unveils a number of interesting effects, including Zeeman splitting of plasmonic scattering resonances, tunable gyrotropy-induced rotation of dipolar radiati

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Orzechowski, Kamil, Martyna Wasiluk, Konrad Jabłoński, et al. "Designated ligand functionalization of gold nanoparticles for optimizing blue-phase liquid crystal composites." Photonics Letters of Poland 16, no. 4 (2024): 71–75. https://doi.org/10.4302/plp.v16i4.1304.

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This work presents the impact of the composition of the organic shell of 4 nm gold nanoparticles (Au NPs) on the optical properties and stability of the nanoparticle-doped blue-phase liquid crystals (BPLCs). Particularly, we show that the binary shell of NPs, comprising LC-like ligands, can significantly enhance the thermal stability of BPs. Moreover, modifying the shell composition enables control over the Bragg wavelength of BPLCs. Our findings highlight the potential of ligand-functionalized Au NPs to optimize BPLC-based photonic devices, emphasizing ligand functionalization as a crucial fa

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Wei Si-Yu, Huang Hao, Ma Xiao-Yun, Huang Hai-Wen, Xu Xin, and Wang Rong-Yao. "Selective modulation of the plasmonic circular dichroism enabled by synergic asymmetric optomechanical and photothermal effects in nano-plasmonic chiral structures." Acta Physica Sinica 74, no. 14 (2025): 0. https://doi.org/10.7498/aps.74.20250423.

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Nano-plasmonic chiral structures exhibit stronger plasmonic circular dichroism than most organic materials. In addition to the circular dichroism response, the interaction between light and nano-plasmonic chiral structures also involves the photothermal and optomechanical effects. However, the synergistic effect between the photothermal and optomechanical effects under circularly polarized light excitation remains poorly understood. This article investigates the synergistic effect of the photothermal and optomechanical effects in chiral gold nanorod trimers. The asymmetric photothermal and opt

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Zakomirnyi, Vadim I., Ilia L. Rasskazov, Lasse K. Sørensen, P. Scott Carney, Zilvinas Rinkevicius, and Hans Ågren. "Plasmonic nano-shells: atomistic discrete interaction versus classic electrodynamics models." Physical Chemistry Chemical Physics 22, no. 24 (2020): 13467–73. http://dx.doi.org/10.1039/d0cp02248a.

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Using the extended discrete interaction model and Mie theory, we investigate the tunability of the optical polarizability and show the size-dependence of the plasma frequency of small metallic nano-shells in the 1–15 nm size region.

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Csernai, L. P., N. Kroo, and I. Papp. "Radiation dominated implosion with nano-plasmonics." Laser and Particle Beams 36, no. 2 (2018): 171–78. http://dx.doi.org/10.1017/s0263034618000149.

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AbstractInertial Confinement Fusion is a promising option to provide massive, clean, and affordable energy for mankind in the future. The present status of research and development is hindered by hydrodynamical instabilities occurring at the intense compression of the target fuel by energetic laser beams. A recent patent combines advances in two fields: Detonations in relativistic fluid dynamics (RFD) and radiative energy deposition by plasmonic nano-shells. The initial compression of the target pellet can be decreased, not to reach the Rayleigh–Taylor or other instabilities, and rapid volume

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6

Tatsuma, Tetsu, and Takuya Ishida. "(Invited) Plasmonic Fabrication of Chiral and Magneto-Chiral Nanostructures." ECS Meeting Abstracts MA2024-02, no. 59 (2024): 3970. https://doi.org/10.1149/ma2024-02593970mtgabs.

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Chiral and magneto-chiral plasmonic nanostructures attract attention because they have various potential applications including catalysts, chemical sensors, and optical and optoelectronic materials and devices. In many cases, those nanostructures are fabricated by lithographic techniques. However, those top down methods are generally time-consuming and expensive. Therefore, we have developed photoelectrochemical methods in which site-selective deposition or dissolution reactions are driven by optical near field generated around anisotropic metal nanoparticles under right- or left-circularly po

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7

Amboli, Jayeeta, Guillaume Demésy, Bruno Galas, and Nicolas Bonod. "Numerical investigation of far-field circular dichroism and local chiral response of pseudo-chiral meta-surface with FEM." EPJ Web of Conferences 266 (2022): 05001. http://dx.doi.org/10.1051/epjconf/202226605001.

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Circular dichroism spectroscopy is a sensitive and widely applied technique to detect chiral molecules. Recent studies have shown high prospects for plasmonic metasurfaces of pseudo-chiral nano-resonators in enhancing chiral sensitivity. Here we study the far-field circular dichroism for gold U-shaped metasurfaces by calculating Mueller matrix elements with the Finite element method and investigate its response in light of the near field electric energy and optical chiral density.

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8

Tatsuma, Tetsu, Takuya Ishida, and Yuri Kameoka. "(Invited) Plasmonic Nanofabrication of Chiral Nanodisk Ensembles." ECS Meeting Abstracts MA2024-01, no. 13 (2024): 1099. http://dx.doi.org/10.1149/ma2024-01131099mtgabs.

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Chiral plasmonic nanostructures attract attention because those could be applied to enantioselective chemical sensors, optical isolators, light sources for circularly polarized light (CPL), metasurfaces, and metamaterials. In many cases, chiral plasmonic nanostructures are fabricated by a top-down method such as electron beam lithography (EBL). Since EBL is time-consuming and expensive, we have developed photoelectrochemical methods in which a site-selective reaction is driven by optical near field generated around anisotropic metal nanoparticles under right- or left-CPL. As anisotropic metal

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9

Yadav, Vikas, and Soumik Siddhanta. "Engineering chiral plasmonic nanostructures for gain-assisted plasmon amplification and tunable enhancement of circular dichroism." Materials Advances 3, no. 3 (2022): 1825–33. http://dx.doi.org/10.1039/d1ma01067k.

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We have demonstrated that the SPASER configuration can provide giant chiroptical enhancements in plasmonic nano assemblies within the lasing threshold which can be harnessed for highly efficient chiral sensing or imaging of complex biological environments.

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10

Klös, Gunnar, Amanda Andersen, Matteo Miola, Henrik Birkedal, and Duncan S. Sutherland. "Oxidation controlled lift-off of 3D chiral plasmonic Au nano-hooks." Nano Research 12, no. 7 (2019): 1635–42. http://dx.doi.org/10.1007/s12274-019-2412-x.

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11

Tatsuma, Tetsu, Takuya Ishida, and Hiroyasu Nishi. "(Invited) Photoelectrochemical Fabrication of Chiral Plasmonic Nanostructures By Circularly Polarized Light." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 929. http://dx.doi.org/10.1149/ma2022-0113929mtgabs.

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Chiral plasmonic nanostructures attracts attention because they are potentially applicable to optical materials such as enantioselective sensors and metamaterials, as well as photoelectrochemical devices. Chiral nanostructures are often prepared by electron beam lithography or synthesis based on DNA templates. We have recently developed a photoelectrochemical method, in which handedness of the chiral nanostructure can be controlled by right- or left- circularly polarized light. The photoelectrochemical method is based on plasmon-induced charge separation (PICS),1,2 in which electrons are injec

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12

Zhao, Jun, Bettina Frank, Frank Neubrech, Chunjie Zhang, Paul V. Braun, and Harald Giessen. "Hole-mask colloidal nanolithography combined with tilted-angle-rotation evaporation: A versatile method for fabrication of low-cost and large-area complex plasmonic nanostructures and metamaterials." Beilstein Journal of Nanotechnology 5 (May 6, 2014): 577–86. http://dx.doi.org/10.3762/bjnano.5.68.

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Many nano-optical applications require a suitable nanofabrication technology. Hole-mask colloidal nanolithography has proven to be a low-cost and large-area alternative for the fabrication of complex plasmonic nanostructures as well as metamaterials. In this paper, we describe the fabrication process step by step. We manufacture a variety of different plasmonic structures ranging from simple nano-antennas over complex chiral structures to stacked composite materials for applications such as sensing. Additionally, we give details on the control of the nanostructure lateral density which allows

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13

Chen, Shanshan, Chang-Yin Ji, Yu Han, et al. "Plasmonic diastereoisomer arrays with reversed circular dichroism simply controlled by deformation height." APL Photonics 7, no. 5 (2022): 056102. http://dx.doi.org/10.1063/5.0085981.

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Chirality reversal between enantiomers is of great importance in both fundamental science and practical applications in chiroptics, biomedicine, and analytical chemistry. Here, we demonstrate an abrupt sign reversal of circular dichroism (CD) between artificial plasmonic diastereoisomers, which are a kind of stereo twisted metamolecules with different strength of deformations. The sign of the CD response is reversed in the same wavelength region by simply engineering the deformation height of nanostructures. Electromagnetic multipolar analysis shows that the sign of CD is determined by the pha

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14

Roychoudhury, Piya, Rahul Bose, Przemysław Dąbek, and Andrzej Witkowski. "Photonic Nano-/Microstructured Diatom Based Biosilica in Metal Modification and Removal—A Review." Materials 15, no. 19 (2022): 6597. http://dx.doi.org/10.3390/ma15196597.

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The siliceous exoskeletal shells of diatoms, commonly known as frustules, have drawn attention because of their photoluminescence property and high volume to surface area. Photonic biosilica can also enhance the plasmonic sensitivity of nanoparticles. Because of this, researchers have studied the effectiveness of various metal particles after combining with biosilica. Additionally, naturally occurring diatom-based biosilica has excellent adsorption and absorption capabilities, which have already been exploited for wastewater treatment. Moreover, the nanoporous, ultra-hydrophilic frustules can

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15

Ghimire, Rupesh, Jhih-Sheng Wu, Vadym Apalkov, and Mark I. Stockman. "Topological nanospaser." Nanophotonics 9, no. 4 (2020): 865–74. http://dx.doi.org/10.1515/nanoph-2019-0496.

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AbstractWe propose a nanospaser made of an achiral plasmonic–metal nanodisk and a two-dimensional chiral gain medium – a monolayer nanoflake of a transition-metal dichalcogenide (TMDC). When one valley of the TMDC is selectively pumped (e.g. by a circular-polarized radiation), the spaser (surface plasmon amplification by stimulated emission of radiation) generates a mode carrying a topological chiral charge that matches that of the gain valley. There is another, chirally mismatched, time-reversed mode with exactly the same frequency but the opposite topological charge; it is actively suppresse

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16

Osanloo, Nahid, Vahid Ahmadi, Mohammad Naser-Moghaddasi, and Elham Darabi. "Engineered nano-sphere array of gold-DNA core–shells and junctions as opto-plasmonic sensors for biodetection." RSC Advances 11, no. 44 (2021): 27215–25. http://dx.doi.org/10.1039/d1ra03079e.

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Csernai, L. P. "Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner." EPJ Web of Conferences 182 (2018): 01002. http://dx.doi.org/10.1051/epjconf/201818201002.

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Walter Greiner was one of the first physicists using Relativistic Fluid Dynamics for High Energy Nuclear Reactions. The present Inertial Confinement Fusion research and development is hindered by hydrodynamic instabilities, occurring at the intense compression of the target fuel by energetic laser beams. The suggested method combines recent advances in two fields: detonations in relativistic fluid dynamics and radiative energy deposition by plasmonic nano-shells. The compression of the target can be negligible and a laser pulse achieves rapid volume ignition, which is as short as the penetrati

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18

Tatsuma, Tetsu, Seung Hyuk Lee, Yuki Oba, and Genki Horiuchi. "(Invited) Near Field Photocatalysis for Site-Selective Reactions By Using ZnO Nanoplates." ECS Meeting Abstracts MA2024-01, no. 35 (2024): 1963. http://dx.doi.org/10.1149/ma2024-01351963mtgabs.

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Nanofabrication is a technology for control of the morphology, orientation, and configuration of nanomaterials. When ordinary, propagating light is employed as a processing tool, subwavelength fabrication is difficult due to the diffraction limit. However, if optical near field, which is localized in a subwavelength region is used, nanofabrication beyond the diffraction limit is possible. We have demonstrated that subwavelength nanofabrication is possible by taking advantage of the optical near field. Since hot electron-hole pairs are generated at around the plasmonic resonance sites, the ener

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19

Krishana, Shivam, and Nabin Kumar. "Asymmetric Transmission in Diffractive Chiral Metasurfaces Consisting of Nanoantennas." Bulletin of Pure and Applied Sciences – Physics 42, no. 2 (2023): 89–92. http://dx.doi.org/10.48165/bpas.2023.42d.2.5.

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We have studied the asymmetric transmission in diffractive chiral metasurfaces consisting of nanoantennas. The study was made of lattice plasmon modes on the phenomenon of asymmetric transmission in chiral two dimensional arrays of plasmonic nanoparticles. It was demonstrated that asymmetric transmission resulted from contribution of higher order diffracted waves. It was shown that the isolated nanostructures has a fourfold rotational symmetry, the diffractive metasurfaces exhibited asymmetric transmission for normal incidence light within spectral range for which lattice plasmon modes were su

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20

Biswas, Sudipta, M. R. C. Mahdy, Saikat Chandra Das, Md Ariful Islam Bhuiyan, and Mohammad Abir Talukder. "Controlling the counterintuitive optical repulsive thrust of nano dimers with counter propagating type waves and background medium." PLOS ONE 18, no. 12 (2023): e0295679. http://dx.doi.org/10.1371/journal.pone.0295679.

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This work focuses on the utilization of counter-propagating plane waves for optical manipulation, which provides a unique approach to control the behavior of Rayleigh and Dipolar nanoparticles immersed in a homogeneous or heterogeneous medium. Our study presents an interesting finding of a repulsive force between plasmonic-chiral heterodimers where the particles move away from each other in both near and far field regions. Interestingly, this repulsive thrust supports the wave like nature of light for the case of homogeneous background but particle type nature of light for heterogenous backgro

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21

Thomas, K. George. "(Invited) Emergent Chiroptical Properties in Assembled Molecules and Materials: From Native Chirality to Global Chirality." ECS Meeting Abstracts MA2024-01, no. 10 (2024): 940. http://dx.doi.org/10.1149/ma2024-0110940mtgabs.

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The emergence of chiroptical properties in molecules and materials through their asymmetric organizations has fascinated humankind in general and the scientific community in particular. By adopting molecules, plasmonic systems, and semiconductor quantum dots as examples, the translation of ‘local’ chirality in these building blocks to the ‘global’ chirality when they self-assemble as nanoobjects will be explained. The presentation covers the following aspects. In assembled molecular systems, induced circular dichroism (ICD) originates through the off-resonance coupling of transition dipoles, r

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Romero, Marcelo R., Alicia V. Veglia, Maria Valeria Amé, and Angel Guillermo Bracamonte. "Multimodal Spectroscopy Assays for Advanced Nano-Optics Approaches by Tuning Nano-Tool Surface Chemistry and Metal-Enhanced Fluorescence." Crystals 14, no. 4 (2024): 338. http://dx.doi.org/10.3390/cryst14040338.

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In this research work, different chemical modifications were applied to gold nanoparticles and their use in enhanced non-classical light emitters based on metal-enhanced fluorescence (MEF) was evaluated. In order to achieve this, gold core–shell nanoparticles with silica shells were modified via multilayered addition and the incorporation of a covalently linked laser dye to develop MEF. Their inter-nanoparticle interactions were evaluated by using additional silica shell multilayers and modified cyclodextrin macrocycles. In this manner, the sizes and chemical surface interactions on the multil

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Frosch, Timea, Andreas Knebl, and Torsten Frosch. "Recent advances in nano-photonic techniques for pharmaceutical drug monitoring with emphasis on Raman spectroscopy." Nanophotonics 9, no. 1 (2019): 19–37. http://dx.doi.org/10.1515/nanoph-2019-0401.

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AbstractInnovations in Raman spectroscopic techniques provide a potential solution to current problems in pharmaceutical drug monitoring. This review aims to summarize the recent advances in the field. The developments of novel plasmonic nanoparticles continuously push the limits of Raman spectroscopic detection. In surface-enhanced Raman spectroscopy (SERS), these particles are used for the strong local enhancement of Raman signals from pharmaceutical drugs. SERS is increasingly applied for forensic trace detection and for therapeutic drug monitoring. In combination with spatially offset Rama

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24

Li, Lianmeng, Xiangyu Zeng, Manna Gu, et al. "Plasmonic Metasurfaces for Superposition of Profile-Tunable Tightly Focused Vector Beams and Generation of the Structured Light." Photonics 10, no. 3 (2023): 317. http://dx.doi.org/10.3390/photonics10030317.

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Vector beams (VBs) and their superposition have found important applications in versatile fields such as optical communications, super-resolution microscopy and quantum information, and metasurfaces have enabled the miniaturization and integration of the optical systems manipulating the vector beams, providing potential applications to subwavelength regimes. In this work, we propose a metasurface to realize the superposition of profile-tunable tightly focused VBs, with the novel structured light fields generated. The metasurface is composed of two sets of orthogonal-nanoslit pairs arranged on

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Lopez-Munoz, Gerardo, Dominik Grochala, Anna Paleczek, et al. "Lithography-Free Metaplasmonic Sensors Developed by TWD/GLAD Technique." ECS Meeting Abstracts MA2024-01, no. 49 (2024): 2705. http://dx.doi.org/10.1149/ma2024-01492705mtgabs.

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Nowadays, plasmonic sensors are the most widely used and commercialized label-free optical biosensors and have become a widespread tool for studying chemical/biochemical interactions. Label-free, real-time, and direct measurements are the major benefits of the plasmonic sensors, including high-throughput surface bio-functionalization strategies without amplification or pretreatment of the sample [1]. The working principle of plasmonic sensing has been extensively described and reviewed over the decades [2], however, the possibility to develop cheap, effective, and clinically-accepted biosensor

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Tatsuma, Tetsu. "(Invited) Plasmonic Photocatalysis and Near-Field Photocatalysis." ECS Meeting Abstracts MA2024-02, no. 68 (2024): 4810. https://doi.org/10.1149/ma2024-02684810mtgabs.

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It is well known that finding of Honda-Fujishima effect1 opened up the way to semiconductor photocatalysis. The semiconductor photocatalysts, typically TiO2, are often modified with noble metal nanoparticles such as platinum as co-catalysts, for improvement of the photocatalytic activity. We modified TiO2 photocatalysts with plasmonic silver2 or gold3 nanoparticles and found that plasmon-induced charge separation (PICS) occurs at the metal-TiO2 interface.3,4 If a metal nanoparticle such as silver or gold is irradiated with light of the resonant wavelength, energetic electrons and holes are gen

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Zhang, Chen, Takuya Ishida, Seung Hyuk Lee, and Tetsu Tatsuma. "Synthesis and Characterization of Superparamagnetic CoPt Alloy Nanoparticles Exhibiting Magneto-Plasmonic Responses." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4595. https://doi.org/10.1149/ma2024-02674595mtgabs.

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Magnetic materials containing transition metals such as Fe, Co, and Ni have attracted considerable interest, in particular for their unique properties, which allow them to be applied to devices for magnetic control of optical communications and magneto-optical data storage. Magnetic control of catalysis and electrocatalysis is also a potential application of magnetic materials. Apparent catalytic activity can be controlled via a magnetohydrodynamic (MHD) effect, which affect mass transport rate in the vicinity of the magnetic material.[1] In addition, enantioselectivity can be given to the sys

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Fujii, Minoru, and Hiroshi Sugimoto. "(Invited) Mie Resonant Silicon Nanosphere Nanoantenna for Fluorescence Enhancement." ECS Meeting Abstracts MA2024-01, no. 23 (2024): 1356. http://dx.doi.org/10.1149/ma2024-01231356mtgabs.

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A nanoantenna is a device that manipulates light propagation and enhances light-matter interaction at the nanoscale. Integration of an emitter into a nanoantenna capable of increasing local density of photonic states at the emission wavelength results in the enhancement of the spontaneous emission rate (Purcell effect) and modifies the emission spectrum. A nanoantenna can also control the directionality and radiation pattern of an emitter. Traditionally, plasmonic nanoantennas made from gold or silver nanostructures supporting localized surface plasmon resonances had been the main stream of th

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Yang, Xiu, Shanshan Huang, Rohit Chikkaraddy, et al. "Chiral Plasmonic Shells: High-Performance Metamaterials for Sensitive Chiral Biomolecule Detection." ACS Applied Materials & Interfaces, November 15, 2022. http://dx.doi.org/10.1021/acsami.2c16752.

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Sunaba, Yuji, Masaki Ide, Ryo Takei, Kyosuke Sakai, Christophe Pin, and Keiji Sasaki. "Nano-shaping of chiral photons." Nanophotonics, May 16, 2023. http://dx.doi.org/10.1515/nanoph-2022-0779.

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Abstract Localized surface plasmon polaritons can confine the optical field to a single-nanometer-scale area, strongly enhancing the interaction between photons and molecules. Theoretically, the ultimate enhancement might be achieved by reducing the “photon size” to the molecular extinction cross-section. In addition, desired control of electronic transitions in molecules can be realized if the “photon shape” can be manipulated on a single-nanometer scale. By matching the photon shape with that of the molecular electron wavefunction, optically forbidden transitions can be induced efficiently a

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Massimo, Cuscuna, Manoccio Mariachiara, Esposito Marco, et al. "Gallium chiral nanoshaping for circularpolarization handling." June 7, 2021. https://doi.org/10.1039/d0mh01078b.

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In this work we report the local growth of ordered arrays of 3D core–shell chiral nanohelices based on plasmonic gallium metal. The structures can be engineered in a single step using focused ion beam induced deposition, where a Ga<sup>+</sup> ion source is used to shape the metallic nanohelix core, while the dielectric precursor is dissociated to create dielectric shells. The solubility of gallium in the different investigated dielectric matrices controls the core–shell thickness ratio of the nanohelices. The chiral plasmonic behaviour of these gallium-based nanostructures is expe

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Huang, Shanshan, Siyi Wang, Xiu Yang, et al. "Ultrasensitive Ultraviolet Chiral Plasmonic Biosensor Based on Passivated Al Shells." ACS Applied Materials & Interfaces, May 1, 2025. https://doi.org/10.1021/acsami.5c02061.

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Wang, Fei, Zexiang Han, Juehan Sun, XueKang Yang, Xiaoli Wang, and Zhiyong Tang. "Reversible Ultrafast Chiroptical Responses in Planar Plasmonic Nano‐Oligomer." Advanced Materials, September 2023. http://dx.doi.org/10.1002/adma.202304657.

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Abstract(Ultracompact chiral plasmonic nanostructures with unique chiral light‐matter interactions are vital for future photonic technologies. However, previous studies are limited to reporting their steady‐state performance, presenting a fundamental obstacle to the development of high‐speed optical devices with polarization sensitivity. Here, we provide a comprehensive analysis of ultrafast chiroptical response of chiral gold nano‐oligomers using time‐resolved polarimetric measurements. We observe significant differences in terms of the absorption intensity, thus hot electron generation, and

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Xie, Yuanyang, Alexey V. Krasavin, Diane J. Roth, and Anatoly V. Zayats. "Unidirectional chiral scattering from single enantiomeric plasmonic nanoparticles." Nature Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-024-55277-9.

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Abstract Controlling scattering and routing of chiral light at the nanoscale is important for optical information processing and imaging, quantum technologies as well as optical manipulation. Here, we introduce a concept of rotating chiral dipoles in order to achieve unidirectional chiral scattering. Implementing this concept by engineering multipole excitations in helicoidal plasmonic nanoparticles, we experimentally demonstrate enantio-sensitive and highly-directional forward scattering of circularly polarised light. The intensity of this highly-directional scattering is defined by the mutua

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Yao, Chongyang, Huibin He, Weijia Kong, et al. "Polymer‐Driven Co‐Assembly of Achiral and Chiral Nanoparticles into Plasmonic Nanoclusters with Quantitatively Modulated Optical Chirality." Advanced Science, June 19, 2025. https://doi.org/10.1002/advs.202504850.

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AbstractChiral plasmonic nanoassemblies demonstrate enhanced chiral optical activity through plasmonic mode coupling, holding transformative potential for applications in sensing, catalysis, and quantum‐optical technologies. However, the mechanisms underlying this enhancement—particularly the roles of structural geometry, plasmonic coupling, and chiral field amplification—remain incompletely elucidated. A significant challenge persists in designing coupled nanoassemblies with precisely controlled nanostructures to systematically investigate chirality enhancement. Departing from conventional ap

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Wang, Hanwei, and Yang Zhao. "Plasmon-enhanced chiral absorption through electric dipole-electric quadrupole interaction." Journal of Optics, June 3, 2024. http://dx.doi.org/10.1088/2040-8986/ad535e.

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Abstract Enantioselective interactions of chiral molecules include distinct absorptions to opposite-handed circularly polarized light, known as chiral absorption. Traditionally, chiral absorption has been primarily attributed to electric dipole and magnetic dipole interaction with molecular chirality. However, this approach falls short for large molecules that support high-order multipolar components, such as electric quadrupole moment. Here, we introduce a theoretical model to study the chiral absorption of large molecules in the presence of plasmonic nanostructures. This model considers both

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Kim, Juhwan, Jang‐Hwan Han, Hyun Min Kim, Tung‐Chun Lee, and Hyeon‐Ho Jeong. "Plasmonic Nano‐Rotamers with Programmable Polarization‐Resolved Coloration." Advanced Optical Materials, November 20, 2023. http://dx.doi.org/10.1002/adom.202301730.

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Abstract3D‐shaped artificial Mg nano‐rotamers with a programmable dihedral angle between two plasmonic arms, designed to exhibit both programmable linear and circular polarization properties, are presented. The nanoscale physical shadow growth technique offers precise control over the angular alignment in these nanostructures with 1° angular precision, thus controlling their symmetry from achiral C2v and C2h to chiral C2. As a result, they give rise to a wide range of polarization‐resolved coloration, spanning from invisible to visible colors with 46% transmission contrast for linear polarizat

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Raad, Shiva Hayati, Mehdi Afshari-Bavil, and Dong Liu. "Efficient and high-quality absorption enhancement using epsilon-near-zero cylindrical nano-shells constructed by graphene." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-55194-3.

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AbstractThis paper presents a detailed scattering analysis of a hollow-core plasmonic-shell cylindrical wire to design an efficient, compact, narrowband, and reconfigurable optical absorber. The shell is formed by a thin graphene material, investigated in its epsilon-near-zero (ENZ) plasmonic region. Compared to the graphene plasmonic resonances in the terahertz(THz)/far-infrared (FIR) frequencies, the ENZ plasmonic resonances offer a blue shift in the operating frequency of the second-order plasmonic resonances by increasing the geometrical dimensions. This feature is successfully used to des

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Zhang, Yan, Yemeng Sun, Xi Ren, et al. "Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐catalysis." Angewandte Chemie, October 7, 2024. http://dx.doi.org/10.1002/ange.202416221.

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Chiral catalysts for asymmetric catalysis represent a crucial research focus in chemistry and materials science. However, a few cases about chiral‐dependent photocatalysts primarily focus on plasmonic noble metals. Particularly, developing chiral nano‐catalysts that can be driven by mechanical energy remains in the blank stage. Herein, organic polymer‐based enantiomers, chiral polar polyimide (PI) microspheric nano‐assembly are synthesized as novel bifunctional catalysts for asymmetric photocatalysis and piezocatalysis. The PI catalyst enantiomers present enantioselectivity towards left‐ and r

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Zhang, Yan, Yemeng Sun, Xi Ren, et al. "Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐catalysis." Angewandte Chemie International Edition, October 7, 2024. http://dx.doi.org/10.1002/anie.202416221.

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Chiral catalysts for asymmetric catalysis represent a crucial research focus in chemistry and materials science. However, a few cases about chiral‐dependent photocatalysts primarily focus on plasmonic noble metals. Particularly, developing chiral nano‐catalysts that can be driven by mechanical energy remains in the blank stage. Herein, organic polymer‐based enantiomers, chiral polar polyimide (PI) microspheric nano‐assembly are synthesized as novel bifunctional catalysts for asymmetric photocatalysis and piezocatalysis. The PI catalyst enantiomers present enantioselectivity towards left‐ and r

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Zhang, Yingjie, Junqing Li, Rui Zhao, and Xingguang Liu. "Characteristics of surface plasmonic modes in cylindrical chiral-graphene-dielectric waveguide structure." Journal of Physics D: Applied Physics, November 29, 2022. http://dx.doi.org/10.1088/1361-6463/aca6f4.

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Abstract A cylindrical chiral-graphene-dielectric waveguide structure is proposed. Correspondingly, characteristics of surface plasmonic mode are theoretically investigated, including dispersion relation, intensity, phase and polarization distribution. The proposed waveguide can only support the vortex modes with the hybrid polarization distribution, which originates from the spin-momentum locking of evanescent electromagnetic waves. The circular birefringence of chiral materials releases the degeneracy between same-order vortex modes. In addition, the number of modes can be controlled by chan

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Huang, Xuedong, Qian Shi, Yanwei Lu, et al. "Single‐Molecule Electrochemiluminescence Imaging of Plasmonic Hot Spot Reactivity." Angewandte Chemie International Edition, July 2, 2025. https://doi.org/10.1002/anie.202508266.

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Localized surface plasmon resonance (LSPR), an important optical property of noble metal nanomaterials, is extensively applied in electrochemistry. However, the specific LSPR effects on metallic nanoparticles are difficult to unravel and evaluate owing to simultaneous factors like intrinsic electroactivity and surface interactions. Herein, we designed a series of shell‐isolated nanostructures, with mesoporous silica shells and plasmonic Au Nanorod cores (AuNR@mSiO2), for precisely investigating both LSPR and nanoconfinement effects. Single‐molecule electrochemiluminescence (ECL) imaging was em

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Huang, Xuedong, Qian Shi, Yanwei Lu, et al. "Single‐Molecule Electrochemiluminescence Imaging of Plasmonic Hot Spot Reactivity." Angewandte Chemie, July 2, 2025. https://doi.org/10.1002/ange.202508266.

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Localized surface plasmon resonance (LSPR), an important optical property of noble metal nanomaterials, is extensively applied in electrochemistry. However, the specific LSPR effects on metallic nanoparticles are difficult to unravel and evaluate owing to simultaneous factors like intrinsic electroactivity and surface interactions. Herein, we designed a series of shell‐isolated nanostructures, with mesoporous silica shells and plasmonic Au Nanorod cores (AuNR@mSiO2), for precisely investigating both LSPR and nanoconfinement effects. Single‐molecule electrochemiluminescence (ECL) imaging was em

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Qin, Jin, Xiaofei Wu, Anke Krueger, and Bert Hecht. "Light-driven plasmonic microrobot for nanoparticle manipulation." Nature Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-025-57871-x.

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Abstract Recently light-driven microdrones have been demonstrated, making use of plasmonic nanomotors based on directional resonant chiral light scattering. These nanomotors can be addressed individually, without requiring the tracking of a focused laser, leading to exceptional 2D maneuverability which renders microdrones a versatile robotic platform in aqueous environments. Here, we incorporate a light-operated manipulator, a plasmonic nano-tweezer, into the microdrone platform, rendering it a microrobot by enabling precise, all-optical transport and delivery of single nanoparticles suspended

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Wang, Qifa, Jiahe Liu, Chenyang Li, et al. "On‐Demand Fabrication and Manipulation of Single Plasmonic Trimers for Ultrasensitive Enantiomer Detection." Advanced Functional Materials, October 25, 2024. http://dx.doi.org/10.1002/adfm.202412985.

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AbstractThe capability of plasmonic nanostructures in generating superchiral near‐fields holds great potential for a wide range of applications, including enantioselective sensing, medical diagnosis, and chirality‐based bioimaging. To implement high‐performance chiral nanophotonic devices, achieving in situ tuning of chiroptical activity in plasmonic nanostructures is highly desirable yet remains a formidable challenge. Here, a straightforward method is developed for deterministic assembly of plasmonic nanosphere trimers using spectroscopy‐assisted nano‐manipulation. The technique offers in si

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Hussain, Shahid, Xueyu Guan, Ruonan Ji, and Shao-Wei Wang. "Ultra-wideband chiroptical response by tri-layer anisotropic plasmonic metamaterial." Journal of Physics D: Applied Physics, October 24, 2023. http://dx.doi.org/10.1088/1361-6463/ad066d.

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Abstract The use of plasmonic chiral metamaterials for the control of circular polarization has the potential to replace conventional optical equipment for the polarization-related applications. The ultra-broadband chiroptic response using plasmonic constituents is delivered by elaborate three-dimensional (3D) helical structures, nevertheless, their implementation is complicated, time-consuming, and poses a significant scaling difficulty at the nano level. Ultra-broadband response from planar constituents is particularly necessary as a means to circumvent the challenges of 3D metamaterials. He

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Ghamari, Shahin, Hsin-Yu Wu, Srikanth Pedireddy, and Frank Vollmer. "Plasmonic nanorod and dimer chiral molecule sensing from cysteine monolayer to bi-layers and multilayered shells." npj Biosensing 2, no. 1 (2025). https://doi.org/10.1038/s44328-025-00036-z.

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Huang, Shanshan, Shilin Xian, Jialong Peng, Xiu Yang, Jinglei Du, and Yidong Hou. "Long‐Range Disorder MetaSurface Enabled High‐Performance One‐Shot Ultraviolet Full‐Stokes Polarimeter." Laser & Photonics Reviews, August 22, 2024. http://dx.doi.org/10.1002/lpor.202400784.

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AbstractThe rapidly‐developed nanophotonics enable the realization of highly‐precise, ultra‐compact full Stokes polarimeters. However, realizing large‐area well‐designed structures with complex chiral morphology and subwavelength size is still a challenge to the current micro/nano‐engineering technology. Here, one high‐performance, ultra‐compact, and one‐shot full‐Stokes polarimeters in the ultraviolent waveband for the first time based on the long‐range disorder chiral shells fabricated by the micro‐sphere lithography are experimentally demonstrated. This chiral–shell monolayer owns strong an

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Petronijevic, Emilija, T. Cesca, C. Scian, et al. "Demonstration of extrinsic chirality in self-assembled asymmetric plasmonic metasurfaces and nanohole arrays." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-68007-4.

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AbstractChirality, the lack of mirror symmetry, can be mimicked in nanophotonics and plasmonics by breaking the symmetry in light-nanostructure interaction. Here we report on versatile use of nanosphere lithography for the fabrication of low-cost metasurfaces, which exhibit broadband handedness- and angle-dependent extinction in the near-infrared range, thus offering extrinsic chiro-optical behavior. We measure wavelength and angle dependence of the extinction for four samples. Two samples are made of polystyrene nanospheres asymmetrically covered by silver and gold in one case and silver only

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Cognée, Kévin G., Hugo M. Doeleman, Philippe Lalanne, and A. F. Koenderink. "Cooperative interactions between nano-antennas in a high-Q cavity for unidirectional light sources." Light: Science & Applications 8, no. 1 (2019). http://dx.doi.org/10.1038/s41377-019-0227-x.

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AbstractWe analyse the resonant mode structure and local density of states in high-Q hybrid plasmonic-photonic resonators composed of dielectric microdisks hybridized with pairs of plasmon antennas that are systematically swept in position through the cavity mode. On the one hand, this system is a classical realization of the cooperative resonant dipole–dipole interaction through a cavity mode, as is evident through predicted and measured resonance linewidths and shifts. At the same time, our work introduces the notion of ‘phased array’ antenna physics into plasmonic-photonic resonators. We pr

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