Article
Materials Science, Multidisciplinary
Xiaoqiang Su, Lijuan Dong, Louhong Wen, Yuzhu Liu, Yanfeng Li, Chunmei Ouyang, Quan Xu, Xueqian Zhang, Yunlong Shi, Jiaguang Han
Summary: In this study, a novel strategy is proposed to manipulate the switching and slow wave features of spoof surface plasmon polaritons (SPPs) based on plasmon-induced transparency (PIT) spectral responses. The strategy involves loading a combined module of split square-ring resonators and electric-LC resonators into the SPP waveguide to achieve a high modulation contrast in SPP transmission at the PIT peak frequency.
RESULTS IN PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Runcheng Liu, Zhipeng Zha, Muhammad Shafi, Can Li, Wen Yang, Shicai Xu, Mei Liu, Shouzhen Jiang
Summary: The proposed HMM/Ag NPs platform allows for the excitation and utilization of BPP for SERS applications, with the Ag NPs providing strong plasmonic properties and acting as a light-matter coupler. Additionally, the platform successfully decouples BPP into localized surface plasmon using the nano antenna structure of Ag NPs, showing potential for surface-enhanced spectroscopy applications.
Article
Optics
Pavel Melentiev, Arthur Kuzin, Dmitry Negrov, Victor Balykin
Summary: This study proposes and realizes a single-mode surface plasmon polariton (SPP) waveguide formed by two parallel grooves on a high-quality silver film, reducing metal loss and demonstrating a complex on-chip optical circuit involving SPP plane wave excitation, focusing, and coupling.
Article
Nanoscience & Nanotechnology
Kevin T. Crampton, Alan G. Joly, Patrick Z. El-Khoury
Summary: The research demonstrates control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver. The characteristics of the optical grating can be tuned through various nanohole array parameters, and temporal interference of SPPs with different central wavelengths can be achieved using multiperiodic arrays (MPAs).
Article
Nanoscience & Nanotechnology
Kevin T. Crampton, Alan G. Joly, Patrick Z. El-Khoury
Summary: The study demonstrates control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver, showing that SPPs launched from multiple arrays can interfere at defined spatial positions to form an all-SPP periodic nano-optical grating that evolves as the SPPs propagate. The spatio-temporal characteristics of the optical grating can be tuned through various nanohole array parameters, and the temporal interference of SPPs with different central wavelengths can be tailored through multiperiodic arrays (MPAs) consisting of arrays with different pitches placed adjacent to one another. Temporal interference serves as an encoded signal, where frequency components can be controlled by array properties.
Article
Optics
Rituraj, Meir Orenstein, Shanhui Fan
Summary: The study focuses on the polaritonic bandstructure of a 2D atomic lattice coupled to a surface plasmon polariton mode in the single excitation regime. By using a computational technique based on Dirichlet-to-Neumann map, a 2D atomic lattice is designed using only two-level atoms with an isolated flat polaritonic band where the group velocity for the modes approach zero across the Brillouin zone. Such a system could be utilized for slowing, storing, and manipulating single photons in a 2D geometry.
Article
Materials Science, Multidisciplinary
Shenghao Gu, Xinyao Yuan, Lei Liu, Mingming Sun, Ying Zhang, Quan Xu, Jiaguang Han
Summary: Plasmonics utilizes surface plasmon polaritons (SPPs) which have strong subwavelength field confinement and enhancement, making them promising for on-chip integrated circuits. However, the weak confinement of SPPs and immature near-field technology present challenges for terahertz frequency devices. In this study, a highly confined SPP mode (spoof SPP) is achieved through structured metal surfaces and gradient index lenses are constructed to regulate terahertz waves, enabling further miniaturization and compactness of THz devices.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
M. J. Maleki, M. Soroosh, G. Akbarizadeh
Summary: In this study, a new structure based on surface plasmon polariton propagation is introduced for decode operation in optical circuits. A graphene monolayer is used for terahertz wave transmission, while a silicon ridge helps achieve high confinement. The designed structure shows low loss and long coupling length, controlled by adjusting the graphene chemical potential.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Anton V. Dyshlyuk, Alexey Proskurin, Andrey A. Bogdanov, Oleg B. Vitrik
Summary: The unusual optical properties of laser-ablated metal surfaces are caused by the excitation of local plasmon resonances in nano- and microstructures, as well as the interaction of these structures through surface plasmon polariton waves. The analytical solution to the problem of surface plasmon polariton excitation is important, and it can be solved by considering the surface geometry as a superposition of harmonic Fourier components. This study demonstrates that the problem can be solved using a method for calculating guided-mode amplitudes in the presence of current sources.
Article
Chemistry, Physical
Hao Pan, Bing-xiang Li, Hai Feng Zhang
Summary: This paper presents a new method called anapole mode, which can control radiative losses in nanophotonics and plasmonics. By introducing directional-selective spoof surface plasmon polariton (SSPP) excited by anapole mode, a set of multifunctional Janus metastructures (JMSs) for light excitation is achieved, including absorption, transmission, and reflection functions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
Huai-Yi Xie
Summary: This paper constructs the dyadic Green's functions (DGFs) for a stratified sphere made of a topological insulator (TI) based on axion electrodynamics, considering the axion coupling effect. The formulation of light scattering from a dipole near the TI stratified sphere is derived using these DGFs. Numerical studies are conducted on different configurations to investigate the influence of the topological magneto-electric (TME) response of the TI sphere on the multipolar plasmonic resonance of the metal shells. The results show that the TME effect causes modifications of the decay rate spectrum for the emitting dipole near the TI stratified sphere.
Article
Physics, Applied
L. Nordin, P. Petluru, A. J. Muhowski, E. A. Shaner, D. Wasserman
Summary: This study demonstrates all-epitaxial structures capable of supporting short- and long-range surface plasmon polariton modes in the long-wave infrared region. The epitaxial structures show potential to serve as long-range interconnects or waveguides in plasmonic/optoelectronic systems. Mapping of the SPP dispersion using spectroscopy highlights the applications in the long-wave infrared.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jianping Liu, Weilin Wang, Fang Xie, Xiaoming Zhang, Xia Zhou, Yijun Yuan, Lingling Wang
Summary: In this study, a novel grating consisting of a double-layer graphene array is proposed to address the challenge of exciting surface plasmon polariton (SPP) modes in a long-range SPP waveguide. Through finite-difference time-domain simulations, it is demonstrated that two symmetric coupling modes can be excited and controlled by varying the parameters of the device. The proposed grating has applications in mid-infrared optical devices and shows potential for manipulating electromagnetic waves in future photonic integrated circuits.
Article
Nanoscience & Nanotechnology
Ernesta Buzavaite-Verteliene, Vilius Vertelis, Zigmas Balevicius
Summary: Total internal reflection ellipsometry was used to excite and study the hybrid Tamm plasmon-surface plasmon polaritons mode, with a simple optical methodology proposed using optical filters to cut the incident light spectra. The experimental studies showed that strong coupling in the investigated system is enough to excite only one component of the hybrid excitation, leading to similar dispersion relations as when excited with a whole spectrum. The obtained Rabi splitting for the hybrid TPP and SPP modes in the multilayered structure was approximately 105 meV.
Article
Optics
Jingjing Hong, Xingping Zhou, Rui Zhuang, Wei Peng, Jiawei Liu, Aiping Liu, Qin Wang
Summary: A stable and manipulatable nanoparticle trapping method called Counter-Surface Plasmon Polariton Lens (CSPPL) is proposed in this paper. By adjusting the incident angle and phase difference, the optical potential depth and center position on CSPPL can be accurately controlled. This study promotes the development of integrated optical tweezers.
CHINESE OPTICS LETTERS
(2022)
Review
Optics
Kunal Shastri, Francesco Monticone
Summary: 'Nonlocality' in electromagnetics and photonics refers to the dependence of a material or system's response/output at a certain point in space on the input field across an extended region of space. Nonlocal flat optics aims to exploit strong effective nonlocality to enhance the response of metasurfaces. This article summarizes the latest advances in this field, highlighting its fundamental principles and various applications, from optical computing to space compression. The convergence of local and nonlocal flat optics may revolutionize the control of light using ultra-thin platforms in real and momentum space.
Article
Materials Science, Multidisciplinary
Mohamed Ismail Abdelrahman, Francesco Monticone
Summary: This paper explores the importance of light reflection in modern technologies and provides analytical expressions for the maximal reflected power in any direction and polarization for generic planar structures. By solving an optimization problem, the authors obtain global upper bounds and discover parameter regions for improving existing designs. The findings have implications for the design of efficient reflective components such as gratings, polarization converters, and lightweight mirrors.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Physics, Multidisciplinary
Tatiana G. Rappoport, Tiago A. Morgado, Sylvain Lannebere, Mario G. Silveirinha
Summary: The study finds that low-symmetry two-dimensional metallic systems can achieve distributed transistor response and characterizes the optical conductivity. By applying strain to bilayer graphene, optical gain can be realized, leading to a distributed transistor response.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Mario G. Silveirinha
Summary: Topological photonics offers a valuable framework to explain complex wave phenomena in electromagnetic systems. The topological index of a physical system is a global property dependent on the operators describing wave propagation. We establish a significant geometric connection between topological physics and the topological theory of mathematical surfaces. Our findings demonstrate that topological band theory extends the surface topological theory, wherein the surface genus can be considered as a Chern number of a suitable surface operator. We also explore the implications of topology in radiation problems and the bulk-edge correspondence in physical systems.
Article
Nanoscience & Nanotechnology
Filipa R. Prudencio, Mario G. Silveirinha
Summary: In this study, it is demonstrated that isorefractive spacetime crystals with a travelling-wave modulation can rigorously mimic the response of moving material systems. Unlike generic spacetime crystals, which exhibit bi-anisotropic coupling in the co-moving frame, isorefractive crystals show an observer-independent response, resulting in isotropic constitutive relations without any bianisotropy. The researchers show how this property can be utilized in calculating the band diagrams of isorefractive spacetime crystals in the laboratory frame and studying synthetic Fresnel drag. Additionally, the impact of considering either a Galilean or a Lorentz transformation in the homogenization of spacetime crystals is discussed, revealing that the effective response is independent of the transformation considered.
Article
Physics, Applied
Filipa R. Prudencio, Mario G. Silveirinha
Summary: We demonstrate that space-time modulations can be used to achieve complex nonreciprocal couplings, particularly the elusive axion response. We develop an analytical formalism for homogenizing anisotropic space-time crystals in the long wavelength limit and find that space-time crystals with appropriate glide-rotation symmetry can exhibit a giant axion-type response, several orders of magnitude larger than in natural materials. The nonreciprocal axion response has interesting potential applications in optics, such as electromagnetic isolation, and can enable exciting forms of light-wave interactions.
PHYSICAL REVIEW APPLIED
(2023)
Article
Engineering, Electrical & Electronic
Zeki Hayran, Francesco Monticone
Summary: Time-varying systems offer intriguing opportunities for designing efficient electromagnetic devices. Recent years have witnessed renewed interest in the design of dynamic electromagnetic systems, driven by the desire to surpass conventional performance limits and challenge well-established bounds. This overview provides a concise summary of relevant applications where time-varying elements can overcome performance limits, paving the way for superior devices and offering insights into future electromagnetic and optical technologies.
IEEE ANTENNAS AND PROPAGATION MAGAZINE
(2023)
Editorial Material
Multidisciplinary Sciences
Mario G. Silveirinha
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Optics
Konstantin Y. Bliokh, Ebrahim Karimi, Miles J. Padgett, Miguel A. Alonso, Mark R. Dennis, Angela Dudley, Andrew Forbes, Sina Zahedpour, Scott W. Hancock, Howard M. Milchberg, Stefan Rotter, Franco Nori, Sahin K. Ozdemir, Nicholas Bender, Hui Cao, Paul B. Corkum, Carlos Hernandez-Garcia, Haoran Ren, Yuri Kivshar, Mario G. Silveirinha, Nader Engheta, Arno Rauschenbeutel, Philipp Schneeweiss, Juergen Volz, Daniel Leykam, Daria A. Smirnova, Kexiu Rong, Bo Wang, Erez Hasman, Michela F. Picardi, Anatoly Zayats, Francisco J. Rodriguez-Fortuno, Chenwen Yang, Jie Ren, Alexander B. Khanikaev, Andrea Alu, Etienne Brasselet, Michael Shats, Jo Verbeeck, Peter Schattschneider, Dusan Sarenac, David G. Cory, Dmitry A. Pushin, Michael Birk, Alexey Gorlach, Ido Kaminer, Filippo Cardano, Lorenzo Marrucci, Mario Krenn, Florian Marquardt
Summary: Structured waves are found in all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave. These complex wavefields with inhomogeneities are crucial in various fields such as nanooptics, photonics, quantum matter waves, acoustics, water waves, etc. This Roadmap surveys the role of structured waves in wave physics, providing background, current research, and anticipating future developments.
Article
Nanoscience & Nanotechnology
S. Ali Hassani Gangaraj, Boyuan Jin, Christos Argyropoulos, Francesco Monticone
Summary: This study presents a novel approach to enhance nonlinear light-matter interactions. By utilizing high-speed drifting electrons in materials like graphene, the local electromagnetic field can be significantly enhanced and controlled, resulting in controllable and asymmetric field hot-spots. The theoretical analysis demonstrates that these asymmetric field hot-spots offer an effective solution to enhance third-order nonlinear optical effects.
Article
Materials Science, Multidisciplinary
Joao C. Serra, Mario G. Silveirinha
Summary: We introduce a homogenization approach to characterize the dynamical response of a generic dispersive space-time crystal in the long-wavelength limit. The theory is applied to dispersive space-time platforms with a traveling-wave modulation, and it is shown that for long wavelengths the effective response may be described by a frequency-dependent permittivity. The article discusses the peculiar physics exhibited by dispersive space-time crystals, such as anomalous permittivity dispersion, alternate gain and loss regimes, and multiple resonances in the quasistatic regime.
Article
Materials Science, Multidisciplinary
Joao C. Serra, Mario G. Silveirinha
Summary: Topological photonics is a general framework for designing unidirectional edge waveguides and other platforms with extreme nonreciprocal wave phenomena. This study focuses on the topological classification of photonic crystals formed by inclusions subjected to spacetime rotating-wave modulation. The results show that these crystals have a bianisotropic response that breaks time-reversal symmetry and can lead to nontrivial topologies. A proposal for implementing the Haldane model in a spacetime modulated photonic crystal is also presented.
Article
Engineering, Electrical & Electronic
Jianlin Zhou, Mohamed Ismail Abdelrahman, Thomas B. Conroy, Francesco Monticone, Edwin C. Kan
Summary: This article proposes a semianalytical model based on the electric dipole mode of a dielectric sphere to analyze the effects of object shape, antenna position, and carrier frequency on the backscattered field. Experimental validation shows that the model accurately predicts the field behavior, and the antenna performance is adjusted using scaling factors for matching purposes.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Chemistry, Physical
Ming-Jian He, Xue Guo, Hong Qi, Zhi-Heng Zheng, Mauro Antezza, He-Ping Tan
Summary: In this study, the rectification performance of a three-body radiative diode was greatly improved by introducing graphene into the system. The rectification factor of the proposed diode reached 300% with a 350 nm separation distance between the hot and cold terminals. This improvement was primarily attributed to the surface plasmon polaritons of graphene, which enhanced the heat flux in the forward-biased scenario.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Physics, Fluids & Plasmas
Youssef Jeyar, Mauro Antezza, Brahim Guizal
Summary: We propose a numerical method to solve the electromagnetic scattering problem of a dielectric cylinder partially covered with graphene. By using a classical Fourier-Bessel expansion of the electric field inside and outside the cylinder, and incorporating appropriate boundary conditions in the presence of graphene, we introduce auxiliary boundary conditions to account for the singular nature of the electric field at the edges of the graphene sheet. The method is simple and efficient, and allows for the study of diffraction from such structures. We also identify multiple plasmonic resonances due to the presence of surface modes on the coated cylinder.
