Article
Chemistry, Multidisciplinary
Zhenghe Zhang, Chaojie Xu, Chen Liu, Man Lang, Yuehao Zhang, Minghao Li, Wanli Lu, Zefeng Chen, Chinhua Wang, Shaojun Wang, Xiaofeng Li
Summary: In this study, we enhance the emission of quasi-bound states in the continuum (quasi-BIC) from a resonant monocrystalline silicon (c-Si) metasurface through lattice and multipolar engineering. We identify dual-BICs originating from electric quadrupoles (EQ) and out-of-plane magnetic dipoles, with EQ quasi-BICs exhibiting concentrated near-fields near the c-Si nanodisks. The enhanced radiative local density of states of EQ quasi-BICs overlaps spatially with the emitters, promoting efficient out-coupling.
Article
Chemistry, Multidisciplinary
Jose Luis Pura, Ruhinda Kabonire, Diego R. Abujetas, Jose A. Sanchez-Gil
Summary: This study explores the possibility of achieving polarization conversion using all-dielectric metasurfaces, where linearly polarized light can be transformed into circularly polarized light with near unity polarization rates by precisely adjusting parameters while maintaining the high Q values of quasi-BICs. Moreover, by using double accidental BICs, right and left circularly polarized light can be obtained on demand just by varying the angle of incidence.
Article
Chemistry, Multidisciplinary
Van Doan Le, Yaya Lefkir, Nathalie Destouches
Summary: Laser-induced self-organized plasmonic metasurfaces exhibit hybridized plasmonic and photonic modes. Even with the irregularities in nanoparticle size distribution and positional disorder, the resulting nanostructures show strong coupling between plasmonic and photonic modes. Controlling the statistical properties of plasmonic metasurfaces allows for reproducible control of hybridization mechanisms and their optical properties.
Article
Physics, Applied
Polina P. Vabishchevich, Aleksandr Vaskin, Nicholas Karl, John L. Reno, Michael B. Sinclair, Isabelle Staude, Igal Brener
Summary: In this study, a tunable Mie resonant metasurface based on a diffractive array of semiconductor resonators was designed for ultrafast all-optical switching. By balancing dipolar and quadrupolar Mie resonances, the metasurface can achieve radiation into different diffraction orders and demonstrate fast switch responses. The metasurface's temporal response is governed by thermo-optic effects at higher pump fluences.
APPLIED PHYSICS LETTERS
(2021)
Article
Optics
Kebin Fan, Ilya Shadrivov, Andrey E. Miroshnichenko, Willie J. Padilla
Summary: The article discusses the necessary polarizability requirements to achieve Kerker conditions in all-dielectric metasurfaces, demonstrating invisibility and perfect absorption phenomena, and provides a method for studying exotic electromagnetic phenomena through switching between states by modifying resonator height.
Review
Chemistry, Multidisciplinary
Jun Guan, Jeong-Eun Park, Shikai Deng, Max J. H. Tan, Jingtian Hu, Teri W. Odom
Summary: This review discusses the integration of plasmonic and dielectric metasurfaces with emissive or stimuli-responsive materials, enabling control of light-matter interactions at the nanoscale. Metasurfaces offer the ability to manipulate electromagnetic waves at the subwavelength level, while the combination with nanoscale emitters allows for enhanced photoluminescence, nanoscale lasing, controlled quantum emission, and formation of exciton-polaritons. Additionally, the use of functional materials that respond to external stimuli enables the engineering of tunable nanophotonic devices. Emerging metasurface designs, such as surface-functionalized, chemically tunable, and multilayer hybrid metasurfaces, hold promise for various applications including photocatalysis, sensing, displays, and quantum information.
Article
Optics
Zhongfu Li, Yuanjiang Xiang, Shixiang Xu, Xiaoyu Dai
Summary: This work proposes a thoughtful all-dielectric columns structure with broken symmetry to achieve ultrasensitive sensing in the terahertz range. Sensitivity to the surrounding media can be achieved by observing quasi-BIC resonances in the transmission/reflection spectrum.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Optics
Sergey Lepeshov, Maksim Yesmantovich, Andrey Bogdanov
Summary: Bound states in a continuum in periodic photonic structures can be described as topological defects in the k-space. These vortices can migrate within the Brillouin zone when the geometrical parameters of the system vary. In this study, the migration of polarization vortex from the radiation continuum to the waveguide mode domain is investigated. The transition results in the transformation of far-field polarization vortex into a near-field vortex, characterized by enhanced localization of the evanescent field due to the vanishing fundamental Fourier harmonic of the Bloch amplitude. This mechanism is promising for improving polaritonic devices and optical sensors based on all-dielectric metasurfaces by increasing the overlap between optical modes and 2D excitons or thin layers of bio-analytes.
Article
Optics
Meiqi Li, Qichang Ma, Aiping Luo, Weiyi Hong
Summary: This paper proposes an all-dielectric metasurface composed of a Si layer and three Si rectangular bars with different widths and lengths, which achieves triple high Q-factor and high tunable quasi bound states in the continuum (quasi-BIC) modes with distinct Fano features by breaking the rotational symmetry. By adjusting the asymmetry parameter, the modulation depth, resonant frequency, and linewidth of the sharp triple Fano resonances can be engineered, and the achieved Q-factor can reach 10^7. Moreover, the triple quasi-BIC modes are mainly generated by the toroidal dipole oscillation. The proposed nanostructure has potential applications in nonlinear optics, filters, and multi-channel biosensors.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Mimi Zhou, Shaojun You, Lei Xu, Menghui Fan, Jing Huang, Wenbin Ma, Mingzhe Hu, Shengyun Luo, Mohsen Rahmani, Ya Cheng, Lin Li, Chaobiao Zhou, Lujun Huang, Andrey E. Miroshnichenko
Summary: By adjusting the lattice structure of a metasurface, breaking the symmetry and exciting quasi-bound states can be achieved, resulting in high-Q resonances. The existence of these states was experimentally confirmed by fabricating silicon metasurfaces and measuring their transmission spectra.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Optics
Yao Zhang, Deliang Chen, Wenbin Ma, Shaojun You, Jin Zhang, Menghui Fan, Chaobiao Zhou
Summary: This study numerically investigates the optical modulation in resonant Si-VO2 hybrid metasurfaces and demonstrates that a dynamically tunable optical resonance can be achieved by integrating a VO2 thin film. The results confirm the excellent ability of the VO2 film to modulate the quasi-BICs resonator.
Article
Materials Science, Multidisciplinary
Angela Barreda, Chengjun Zou, Artem Sinelnik, Evgenii Menshikov, Ivan Sinev, Thomas Pertsch, Isabelle Staude
Summary: This study proposes the use of phase change materials to tune the properties of light-emitting metasurfaces designed to support quasi-bound states in the continuum. Numerical simulations demonstrate the different functionalities of the metasurface depending on the selected phase change material. The research provides concrete design blueprints for switchable metasurfaces, offering new opportunities for nanophotonics devices or integrated photonic circuits.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Nanoscience & Nanotechnology
Nir Levanon, S. R. K. Chaitanya Indukuri, Christian Frydendahl, Jonathan Bar-David, Zhengli Han, Noa Mazurski, Uriel Levy
Summary: High-index dielectric metasurfaces have great potential in nanophotonics due to their controllable optical properties and small size. This article focuses on the numerical and experimental study of symmetry-breaking metasurfaces made of amorphous silicon nanodisks. The results show that the angular response of the metasurfaces varies with the tilt direction of the incident light.
Article
Nanoscience & Nanotechnology
Keisuke Watanabe, Masanobu Iwanaga
Summary: This study proposes silicon block metasurfaces with nanogaps to overcome the contradiction between high quality (Q) factors and the large interplay of light with external medium. By introducing nanogaps, the metasurface increases the environmental refractive index sensitivity by up to 2.7 times while maintaining high Q factors, achieving a figure-of-merit (FOM) of 239. Additionally, design guidelines for highly sensitive biosensors based on quasi-bound states in the continuum (BICs) are provided.
Article
Materials Science, Multidisciplinary
Xiaoqing Luo, Yingying Han, Xiang Du, Shuai Chen, Guangyuan Li
Summary: This study demonstrates that silicon metasurfaces formed by the hybridization of two lattices can support robust quasi-bound states in the continuum (quasi-BICs) with the highest measured quality factor reaching 4130 and the minimum one larger than 1024, even under parameter perturbation. By utilizing mirror symmetry points, the transition between a toroidal dipole BIC and an electric quadrupole BIC is reported, which ensures robust ultrahigh-Q quasi-BICs. The minimum quality factors of quasi-BICs can be further improved by shrinking the meta-atom size and are immune from the intrinsic absorption loss of silicon in the visible regime.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Ilia L. Rasskazov, Vadim Zakomirnyi, Anton D. Utyushev, P. Scott Carney, Alexander Moroz
Summary: The modified long-wavelength approximation (MLWA) is an advanced method for estimating the electromagnetic properties of plasmonic nanoparticles, and by utilizing unexplored design flexibility, it can provide surprisingly accurate results within a certain range.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Optics
Artem S. Kostyukov, Ilia L. Rasskazov, Valeriy S. Gerasimov, Sergey P. Polyutov, Sergey Karpov, Alexander E. Ershov
Summary: This study comprehensively investigates the multipolar collective lattice resonances in finite and infinite arrays of gold and aluminum plasmonic nanoparticles. The results show that the multipolar lattice resonances in relatively large finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in infinite arrays. Our findings are important for the practical implementation of multipolar lattice resonances in various photonics applications.
Article
Chemistry, Physical
Lasse K. Sorensen, Anton D. Utyushev, Vadim Zakomirnyi, Valeriy S. Gerasimov, Alexander E. Ershov, Sergey P. Polyutov, Sergey Karpov, Hans Agren
Summary: This study analyzes ultrafine metallic nanoparticles in terms of electromagnetic field generation by plasmonic excitations, using the Ex-DIM model. Surprisingly high concentrations of plasmon fields in very confined hotspots were found, even when particles retained high symmetry.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Ilia L. Rasskazov, Alexander Moroz, P. Scott Carney
Summary: Thick dielectric coatings in metal-dielectric core-shell nanoparticles can lead to extreme fluorescence enhancement due to high-quality transverse electric multipole resonances.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Optics
A. S. Kostyukov, A. E. Ershov, R. G. Bikbaev, V. S. Gerasimov, I. L. Rasskazov, S. Karpov, S. P. Polyutov
Summary: The study identified a narrowband substrate-mediated lattice Kerker effect in two-dimensional arrays of Al nanocylinders in a half-space geometry, providing new possibilities for sensing applications and demonstrating its broad tunability across the UV/Vis wavelength range.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Lasse K. Sorensen, Daniil E. Khrennikov, Valeriy S. Gerasimov, Alexander E. Ershov, Maxim A. Vysotin, Susanna Monti, Vadim Zakomirnyi, Sergey P. Polyutov, Hans Agren, Sergey Karpov
Summary: This study investigates the dependence of plasmon resonance excitations in ultrafine gold nanoparticles on heating and melting using an integrated approach. It reveals that the suppression of plasmon resonance is associated with an increase in atom mobility in the lattice and electron-phonon scattering.
Article
Chemistry, Physical
Ilia L. Rasskazov, Alexander Moroz
Summary: This passage discusses the evaluation method for the suitability of nanostructures for metal-enhanced fluorescence (MEF). It suggests that F = F-q0=1, with q(0) = 1 as a constraint, is a suitable figure of merit for plasmonic structures involved in MEF. Any other realistic F in the MEF regime can be obtained from F-q0=1 by a simple 1/q(0) scaling.
Article
Physics, Applied
Ilia L. Rasskazov, Nishikant Sonwalkar, P. Scott Carney
Summary: This study proposes a strategy for designing regular 2D arrays of nanoholes in metal films with far-field scattering properties similar to that of regular 2D arrays of nanodisks. Full-wave simulations show that there is a minor difference in far-field properties depending on the array periodicity and sizes of the nanodisks (nanoholes) at certain wavelengths or in a broad wavelength range. This study has important implications in plasmon-enhanced-driven applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Review
Physics, Applied
Yanan Ji, Wen Xu, Ilia L. Rasskazov, Haichun Liu, Junhua Hu, Mao Liu, Donglei Zhou, Xue Bai, Hans agren, Hongwei Song
Summary: Metal halide perovskite materials have been extensively explored in modern photonic devices. Photonic crystals can significantly improve the performance of perovskite luminescent materials and/or photoelectric devices. A full understanding of the key role of photonic crystals is essential for realizing the inherent potential of such devices.
APPLIED PHYSICS REVIEWS
(2022)
Article
Materials Science, Multidisciplinary
Roman Gaponenko, Alexander Moroz, Ilia L. Rasskazov, Konstantin Ladutenko, Alexey Shcherbakov, Pavel Belov
Summary: In a variety of applications, small form-factor, narrow band, and highly directive antennas play a critical role. The study demonstrates that the classical directivity limit can be significantly surpassed for electrically small multilayer spherical antennas even if using purely dielectric materials. Feasible designs of superdirective antennas are established through a stochastic optimization algorithm combined with a rigorous analytic solution.
Article
Materials Science, Multidisciplinary
Lang Wang, Ilia L. Rasskazov, P. Scott Carney
Summary: The Foldy-Lax equation is generalized for a medium with particles having both electric and magnetic responses, enabling simulations with a large number of particles. Hierarchical clustering techniques reduce computational complexity to around 10^10 particles. The study shows good agreement between observable properties of effective bulk media and Clausius-Mossotti relation for nonmagnetic materials, as well as between simulated fields for particles with electric and magnetic responses and new analytical results for a generalized effective medium theory.
Article
Chemistry, Physical
Lasse K. Sorensen, Anton D. Utyushev, Vadim I. Zakomirnyi, Hans Agren
Summary: The study investigates the tunability of surface plasmon resonances in alloys and core-shell nanoparticles made from silver and gold on the small nanoscale regime. It shows that the resonances largely follow Vegard's law, but can exhibit nonlinear behavior based on the constituents and geometry, with exceptions in certain geometries. The research also indicates a small dependence of the resonance on atomic arrangement and distribution, with a recommended sampling strategy for nanoparticles below 4 nm.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
V. S. Gerasimov, A. E. Ershov, R. G. Bikbaev, I. L. Rasskazov, I. L. Isaev, P. N. Semina, A. S. Kostyukov, V. Zakomirnyi, S. P. Polyutov, S. Karpov
Summary: The Kerker effect has been largely abandoned but experienced a revival with the emergence of all-dielectric nanophotonics, and can now be observed in nanostructures made of high-index materials. By adjusting the geometrical parameters of Al arrays, the lattice Kerker effect can be tailored in the UV and visible wavelength ranges, presenting a challenge for achieving this with other materials. The results of this study have far-reaching implications for plasmonics and the further application of the Kerker effect.
