Article
Optics
Fernando Gonzalez-Posada, Dominique Coquillat, Melissa Najem, Laurent Cerutti, Thierry Taliercio
Summary: Terahertz time-domain spectroscopy is an important technology in terahertz photonics, with extensive applications in civil and defense fields. Plasmonic microstructures and metasurfaces show promise in improving terahertz spectroscopy techniques and developing biomedical and environmental sensors. Highly doped semiconductors are being used to replace traditional noble metals for plasmonics in the terahertz range. By using semiconductor materials with specific structures, selective absorption of terahertz waves can be achieved.
Article
Optics
Alexandre Mayer, Hai Bi, Sarah Griesse-Nascimento, Benoit Hackens, Jerome Loicq, Eric Mazur, Olivier Deparis, Michael Lobet
Summary: This study uses a genetic algorithm to optimize the absorption properties of periodic arrays of truncated square-based pyramids made of alternating metal/dielectric layers. The results show that combinations of Ni, Ti, Cr, and W with PMMA provide high-quality solutions for ultra-broadband quasi-perfect absorption.
Article
Optics
Philipp Karl, Sandra Mennle, Monika Ubl, Philipp Flad, Jing-Wei Yang, Tzu-Yu Peng, Yu-Jung Lu, Harald Giessen
Summary: With the rapid progress of quantum technologies, superconducting nanowire single photon detectors have become a better alternative to conventional avalanche photodiodes, utilizing resonant plasmonic perfect absorber effects to achieve high absorption efficiency.
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
Optics
Liyi Hsu, Fadi Baida, Abdoulaye Ndao
Summary: Optical nanoantennas have the ability to efficiently confine, localize resonance, and significantly enhance electromagnetic fields at a subwavelength scale. By combining optical nanoantennas with Slanted Bound states in the continuum cavities, even stronger confinement can be achieved. The proposed hybrid system demonstrates six orders of magnitude local intensity enhancement, paving the way for applications such as optical trapping, optical sensing, nonlinear optics, and quantum optics.
Editorial Material
Optics
Guenter Steinmeyer
Summary: A study has reported near-perfect grating structures that exploit plasmonic resonance, surpassing the regularity of commercially available diffraction gratings.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Review
Optics
Li Hu, Zhiguang Sun, Yingdong Nie, Yingzhou Huang, Yurui Fang
Summary: Chiral near-fields, generated or enhanced by plasmonic and photonic nanostructures, serve as a bridge between chiral molecules and light wavelengths. They have significant applications in chiral molecule detection and optical force generation.
LASER & PHOTONICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Rachel C. Elias, Suljo Linic
Summary: Plasmonic metal nanoparticles exhibit localized surface plasmon resonance (LSPR) and can enhance the rate of chemical reactions. In this study, the LSPR-induced rate enhancement of the CO oxidation reaction on Ag nanoparticle catalysts was investigated, revealing the critical role of local effects in driving LSPR-induced chemical reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Nanoscience & Nanotechnology
Yu Yao, Jin Zhou, Zhengqi Liu, Xiaoshan Liu, Guolan Fu, Guiqiang Liu
Summary: Metamaterial light absorbers have gained significant attention for their absorption efficiency and wide range of applications, but traditional noble metals based absorbers can suffer from structural damage due to local high temperatures. Intensive research has focused on developing absorbers that can maintain efficient light absorption and structural stability at high temperatures. Refractory materials are seen as key to providing robust thermal stability and high performance for light absorption.
Review
Chemistry, Multidisciplinary
Sangjun Lee, Sangin Kim
Summary: In this review, various types of graphene-based perfect absorbers are discussed as a solution to the poor light absorption of pure graphene. Their operation principles, design requirements, recent progress, and potential applications are addressed. The importance of mirror-less perfect absorber design is emphasized due to simplified fabrication processes or enhanced tolerance for fabrication error.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Yuanwei Li, Ibrahim Tanriover, Wenjie Zhou, Wisnu Hadibrata, Sina Abedini Dereshgi, Devleena Samanta, Koray Aydin, Chad A. Mirkin
Summary: A synthetic strategy for preparing ultrathin, broadband metasurface absorbers is reported, which involves the surface-assembly of plasmonic octahedral nanoframes into large-area ordered monolayers. The resulting absorbers exhibit efficient light absorption across a wide range of wavelengths and are unaffected by polarization and incidence angles.
Article
Chemistry, Physical
Chenxu Zhao, Huan Wang, Yanyan Bu, Hui Zou, Xiangfu Wang
Summary: This paper introduces the absorption mechanism and design directions of metamaterial perfect absorbers (MPAs), highlighting equivalent impedance matching, plasma resonance, and interference effect as the main absorption mechanisms. The design aspects of MPAs include multiband absorption, ultra-wideband and ultra-narrowband absorption, polarization and angle insensitive absorption, and dynamically controllable tunable absorption.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Computer Science, Information Systems
Majid Amiri, Farzad Tofigh, Negin Shariati, Justin Lipman, Mehran Abolhasan
Summary: Future IoT devices are expected to be fully ubiquitous and autonomous, requiring completely wireless operation and accurate sensing. Metamaterial perfect absorbers (MPAs) have the potential to improve efficiency and applications of IoT devices.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Chemistry, Physical
Veronica Anastasoaie, Roxana Tomescu, Cristian Kusko, Iuliana Mihalache, Adrian Dinescu, Catalin Parvulescu, Gabriel Craciun, Stefan Caramizoiu, Dana Cristea
Summary: Depositing chromophores on plasmonic metasurfaces can increase the sensitivity of fluorescence-based biosensors. By using randomly distributed metallic nanoparticles, significant enhancement of fluorescence can be achieved. The research suggests that nanoparticle aggregates have the potential to serve as a suitable platform for low-cost, mass-produced fluorescent biosensors.
Article
Nanoscience & Nanotechnology
Philipp Grimm, Gary Razinskas, Jer-Shing Huang, Bert Hecht
Summary: The study demonstrates that a generalized version of coherent perfect absorption (gCPA) can be applied to nanoresonators with radiative losses, offering the possibility of achieving perfect impedance matching between different components in plasmonic systems.
Review
Physics, Multidisciplinary
K. Baryshnikova, S. S. Kharintsev, P. A. Belov, N. A. Ustimenko, S. A. Tretyakov, C. R. Simovski
Summary: Metalenses are devices that can form optical images with subwave-length resolution in real time, overcoming the diffraction limit. They are implemented based on metamaterials or metasurfaces and are referred to as either superlenses or hyperlenses.
Article
Engineering, Electrical & Electronic
Masoud Sharifian Mazraeh Mollaei, Ali Sharifian Mazraeh Mollaei, Constantin R. Simovski
Summary: This article presents a novel approach for designing an element of an arrayed radio frequency coil for ultrahigh field magnetic resonance imaging (UHF MRI) to achieve a dual-band transceiver regime in a compact array of magnetic antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Optics
R. Heydarian, C. Simovski
Summary: This paper presents a theoretical study on the lateral resolution achieved by a simple glass microcylinder. The study investigates the scenario of achieving super-resolution in an impractical imaging system by using a microlens instead of a microscope objective lens. It is found that higher refractive indices promise further enhancement of the resolution.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Automation & Control Systems
Prasad Jayathurathnage, Xiaojie Dang, Constantin Simovski, Sergei Tretyakov
Summary: In this article, a novel omnidirectional wireless power transfer system based on double-toroidal helix coils is proposed and studied. The suggested antenna creates two mutually orthogonal magnetic fields through the double-helix coil wounded around a torus. The system consists of three transmitter-repeater pairs orthogonal to each other, ensuring omnidirectional functionality. Experimental results confirm self-tunability and high efficiency for any position and orientation of receivers.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Nam Ha-Van, Yining Liu, Prasad Jayathurathnage, Constantin R. Simovski, Sergei A. Tretyakov
Summary: This article proposes a cylindrical-shaped coil that can generate a homogeneous magnetic field in a plane, enabling megahertz-range wireless power transfer. The coil consists of two helical windings to guide the current in opposite directions, and a single power source is used for excitation without any current amplitude or phase control circuits. The system efficiency is validated by experimental results, and the electromagnetic exposure is confirmed to meet safety regulations.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Optics
R. Heydarian, C. Simovski
Summary: The study demonstrates that deep subwavelength objects located on a dielectric substrate under a glass microcylinder show strong radial polarization, even under normally incident light. The cross-polarization effect arises due to the near-field coupling between the objects and the microcylinder, despite the tangential polarization of the incident electric field. This finding has implications for achieving super-resolution using a glass microsphere.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Optics
Grigorii Ptitcyn, Aristeidis Lamprianidis, Theodosios Karamanos, Viktar Asadchy, Rasoul Alaee, Marvin Mueller, Mohammad Albooyeh, Mohammad Sajjad Mirmoosa, Shanhui Fan, Sergei Tretyakov, Carsten Rockstuhl
Summary: This article explores the interaction between light and time-varying media, which not only provides fundamental insights but also opens up possibilities for various practical applications. Time modulation is a fundamental tool for controlling light in different ways, especially for complex systems with both spatial and temporal structures. The article develops and applies a self-consistent analytical theory of light scattering, focusing on a sphere made from a time-varying material with Lorentzian dispersion. The proposed theory is verified through full-wave simulations and reveals interesting effects such as energy transfer from the time-modulation subsystem to the electromagnetic field.
LASER & PHOTONICS REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
M. Albooyeh, V. Asadchy, J. Zeng, M. Rajaee, H. Kazemi, M. Hanifeh, F. . Capolino
Summary: By utilizing the fundamental electromagnetic properties of metasurfaces, we have developed a platform for classifying reciprocal bianisotropic metasurfaces and determining their isotropic, anisotropic, bi-isotropic, and bianisotropic properties. We have provided experimental guidelines for identifying each class using macroscopic scattering parameters, such as reflection and transmission coefficients, under plane wave illumination with linear and/or circular polarization. We have also clarified common confusions in the classification of anisotropic and chiral metasurfaces based on circular dichroism measurements.
Article
Nanoscience & Nanotechnology
Dmytro Vovchuk, Mykola Khobzei, Mykhailo Apostoliuk, Vladyslav Tkach, Constantin Simovski
Summary: This paper suggests and studies a binary mechanism for long-distance image transfer in a wire-medium endoscope. The study shows that a discrete image formed by TM-polarized point sources with respect to the wire-medium can be transferred from the input to the output of the endoscope in a wide frequency range. The formation of local channels by adjacent wires allows the transfer of the near field beyond the Fabry-Perot resonances.
Article
Multidisciplinary Sciences
Jinwei Zeng, Mohammad Albooyeh, Mohsen Rajaei, Abid Anjum Sifat, Eric O. Potma, H. Kumar Wickramasinghe, Filippo Capolino
Summary: We have experimentally demonstrated the detection of magnetic force at optical frequencies, using a photoinduced magnetic dipole and a magnetic nanoprobe under structured light illumination. This method allows the direct detection of the magnetic force, revealing the magnetic nearfield distribution at the nanoscale.
Article
Physics, Applied
N. Ha-Van, C. R. Simovski, F. S. Cuesta, P. Jayathurathnage, S. A. Tretyakov
Summary: In conventional inductive wireless power devices, energy is transferred via reactive near fields, and radiation from transmitting and receiving coils is considered a parasitic effect that reduces power-transfer efficiency. This paper develops a dynamic theory of wireless power transfer between two small loop antennas, clarifies the role of far-field radiation, and proposes a possibility to achieve efficient wireless power transfer at large distances through radiation suppression. The analytical results are validated through simulations and measurements, offering the potential to greatly expand the distance range of compact wireless power-transfer devices.
PHYSICAL REVIEW APPLIED
(2023)
Article
Computer Science, Information Systems
Javad Shabanpour, Constantin R. Simovski
Summary: Recently, there has been significant interest in reconfigurable intelligent surfaces (RISs) due to their potential for efficient and cost-effective wireless communication networks. However, the current modeling approaches often oversimplify the characteristics of RISs, neglecting important aspects such as resonant frequency dispersion and strong angular dependency of the reflection phases. In this paper, we address this challenge by studying a binary RIS and analytically examining the reflection phase frequency dispersion (RPFD). Our experimental results validate the accuracy of our numerical simulations and analytical predictions.
Article
Engineering, Electrical & Electronic
Rustam Balafendiev, Georgiy Solomakha, Marc Dubois, Redha Abdeddaim, Stefan Enoch, Constantin R. Simovski, Stanislav Glybovski
Summary: In this work, a method for reducing the electric field amplitude of transmitted radio-frequency signals in ultrahigh-field MRI is demonstrated. By exciting three coupled dipoles and controlling the electric field distribution, the electric field around body implants can be minimized. Experimental validation shows a significant reduction in electric field amplitude at a certain depth compared to conventional antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Materials Science, Multidisciplinary
Rustam Balafendiev, Constantin Simovski, Alexander J. Millar, Pavel Belov
Summary: This work focuses on the electromagnetic properties of a resonator used to search for axions, a hypothetical candidate for explaining dark matter. By studying a wire medium loaded resonator, the authors found that the resonator's quality factor decreases as the volume increases, eventually being dominated by resistive losses in the wires. The experimental results confirm the theoretical findings, and even metals like copper can achieve higher quality factors than previously assumed.
Proceedings Paper
Engineering, Electrical & Electronic
M. S. Mirmoosa, M. S. M. Mollaei, G. A. Ptitcyn, C. R. Simovski, S. A. Tretyakov
Summary: In this paper, a third-order linear differential equation, named Rudenberg equation, is derived for describing polarization dynamics of a spherical plasmonic nanoparticle. The equation is analogous to the Abraham-Lorentz equation and was initially written in 1907 for elucidating the Hertzian dipole antenna in the receiving regime. Analytical solutions are found under certain assumptions to describe the radiative decay of the time-varying nanoparticle material.
2021 FIFTEENTH INTERNATIONAL CONGRESS ON ARTIFICIAL MATERIALS FOR NOVEL WAVE PHENOMENA (METAMATERIALS)
(2021)
