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View article: Strongly Coupled Exciton–Hyperbolic‐Phonon‐Polariton Hybridized States in hBN‐Encapsulated Biased Bilayer Graphene
Strongly Coupled Exciton–Hyperbolic‐Phonon‐Polariton Hybridized States in hBN‐Encapsulated Biased Bilayer Graphene Open
Excitons in biased bilayer graphene are electrically tunable optical excitations residing in the mid‐infrared (MIR) spectral range, where intrinsic optical transitions are typically scarce. Such a tunable material system with an excitonic …
View article: Transmission line model for two-dimensional materials and van der Waals heterostructures
Transmission line model for two-dimensional materials and van der Waals heterostructures Open
Van der Waals heterostructures (VdWHs) composed of 2D materials have attracted significant attention in recent years due to their intriguing optical properties, such as strong light-matter interactions and large intrinsic anisotropy. In pa…
View article: Topology-driven design of bianisotropic metasurfaces through knot particles
Topology-driven design of bianisotropic metasurfaces through knot particles Open
Bianisotropic metasurfaces enable advanced electromagnetic wave manipulation through magnetoelectric coupling. Here, we demonstrate how knot particles enable single-layer bianisotropic control using their inherent topology. Leveraging thei…
View article: Strongly Coupled Exciton--Hyperbolic-phonon-polariton Hybridized States in hBN-encapsulated Biased Bilayer Graphene
Strongly Coupled Exciton--Hyperbolic-phonon-polariton Hybridized States in hBN-encapsulated Biased Bilayer Graphene Open
Excitons in biased bilayer graphene are electrically tunable optical excitations residing in the mid-infrared (MIR) spectral range, where intrinsic optical transitions are typically scarce. Such a tunable material system with an excitonic …
View article: Topology-Driven Design of Bianisotropic Metasurfaces Through Knot-Particles
Topology-Driven Design of Bianisotropic Metasurfaces Through Knot-Particles Open
Bianisotropic metasurfaces enable advanced electromagnetic wave manipulation through magnetoelectric coupling. Here, we demonstrate how knot-particles enable single-layer bianisotropic control using their inherent topology. Leveraging thei…
View article: Pulsed magnetic field gradient on a tip for nanoscale imaging of spins
Pulsed magnetic field gradient on a tip for nanoscale imaging of spins Open
Nanoscale magnetic resonance imaging (nanoMRI) is crucial for advancing molecular-level structural analysis, yet existing techniques relying on permanent magnets face limitations in controllability and resolution. This study addresses the …
View article: Electrically Tunable Interband Collective Excitations in Biased Bilayer and Trilayer Graphene
Electrically Tunable Interband Collective Excitations in Biased Bilayer and Trilayer Graphene Open
Collective excitations of charged particles under the influence of an electromagnetic field give rise to a rich variety of hybrid light-matter quasiparticles with unique properties. In metals, intraband collective response manifested by ne…
View article: Analytical Model For The Contribution Of Small Scatterers to Open-Ended Coaxial Probe Measurements
Analytical Model For The Contribution Of Small Scatterers to Open-Ended Coaxial Probe Measurements Open
The open-ended coaxial probe (OECP) technique is one of the most commonly used methods for the characterization of homogeneous media properties, especially in the biomedical sciences. However, when considering inhomogeneous media, the effe…
View article: Pulsed magnetic field gradient on a tip for nanoscale imaging of spins
Pulsed magnetic field gradient on a tip for nanoscale imaging of spins Open
Nanoscale magnetic resonance imaging (nanoMRI) aims at obtaining structure at the single molecule level. Most of the techniques for effecting a nanoMRI gradient use small permanent magnets. Here, we present a switchable magnetic field grad…
View article: Antenna Effect in Large Area Palladium-Coated Electrostatically Formed Silicon Nanowire for Ppb Level Hydrogen Sensing
Antenna Effect in Large Area Palladium-Coated Electrostatically Formed Silicon Nanowire for Ppb Level Hydrogen Sensing Open
An electrostatically formed nanowire (EFN) with an electrostatically formed channel is a highly sensitive and selective sensor for detecting various gases and volatile organic compounds. We report here on a specially designed large-area se…
View article: Nonreciprocal surface plasmons in angularly varying, magnetized, metasurface tubes
Nonreciprocal surface plasmons in angularly varying, magnetized, metasurface tubes Open
We analytically and numerically study the nonreciprocal surface waves guided by a magnetized metasurface tube. When applying the magnetic bias perpendicularly to the cylinder axis, the conductivity profile cross-section is nonuniform, whic…
View article: Extending the propagation length of graphene plasmons via nonlinear frequency conversion
Extending the propagation length of graphene plasmons via nonlinear frequency conversion Open
Graphene plasmons (GPs) are broadband and electrically tunable mid-infrared (MIR)/terahertz (THz) excitations, exhibiting high confinement factors exceeding two orders of magnitude. Such highly confined modes are extremely attractive for n…
View article: Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance
Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance Open
We present a method to design a single-layer, allmetallic angular stable metasurface (ASM) filter unit cell for nearly the entire angular spectrum. We formulate the optimization criterion using the energy balance condition derived from Poy…
View article: Sub-terahertz nearfields for electron-pulse compression
Sub-terahertz nearfields for electron-pulse compression Open
The advent of ultrafast science with pulsed electron beams raised the need to control the temporal features of the electron pulses. One promising suggestion is the nano-selective quantum optics with multi-electrons, which scales quadratica…
View article: Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance
Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance Open
We present a method to design a single-layer, allmetallic angular stable metasurface (ASM) filter unit cell for nearly the entire angular spectrum. We formulate the optimization criterion using the energy balance condition derived from Poy…
View article: Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance
Single-Layer, All Metallic Metasurface Filter With Nearly 90° Angularly Stable Resonance Open
We present a method to design a single-layer angular stable metasurface (ASM) filter unit cell for a nearly full range of angles of incidence. We formulate the optimization criterion using the energy balance condition derived from Poynting…
View article: Sub-Terahertz Nearfields for Electron-Pulse Compression
Sub-Terahertz Nearfields for Electron-Pulse Compression Open
The advent of ultrafast science with pulsed electron beams raised the need in controlling the temporal features of the electron pulses. One promising suggestion is the nano-selective quantum optics with multi-electrons, which scales quadra…
View article: Enhanced sensitivity deep subwavelength direction-of-arrival sensing using temporal modulation
Enhanced sensitivity deep subwavelength direction-of-arrival sensing using temporal modulation Open
Electromagnetic wave interaction with time-varying systems has gained a lot of research interest in recent years. The temporal modulation gives unprecedented control over the response, allowing us to go beyond the state-of-the-art in passi…
View article: Moiré Hyperbolic Metasurfaces
Moiré Hyperbolic Metasurfaces Open
Recent advances in twistronics of low-dimensional materials, such as bilayer graphene and transition-metal dichalcogenides, have enabled a plethora of unusual phenomena associated with moiré physics. However, several of these effects requi…
View article: Rest Frame Interference in Rotating Structures and Metamaterials
Rest Frame Interference in Rotating Structures and Metamaterials Open
Using the formulation of electrodynamics in rotating media, we put into explicit quantitative form the effect of rotation on interference and diffraction patterns as observed in the rotating medium's rest frame. As a paradigm experiment we…
View article: Angular-momentum selectivity and asymmetry in highly confined wave propagation along sheath-helical metasurface tubes
Angular-momentum selectivity and asymmetry in highly confined wave propagation along sheath-helical metasurface tubes Open
Highly confined surface waves present unique opportunities to enhance light\ninteractions with localized emitters or molecules. Hyperbolic dispersion in\nmetasurfaces allows us to tailor and manipulate surface waves, enhancing the\nlocal d…
View article: Nonreciprocal hyperbolic propagation over moving metasurfaces
Nonreciprocal hyperbolic propagation over moving metasurfaces Open
Hyperbolic propagation offers exciting opportunities in nanophotonics, from\nsub-diffraction imaging to enhanced local density of states. This transport\nregime is typically induced by strong modulation of conductivity, i.e., with\nalterna…
View article: Clustering in particle chains - summation techniques for the periodic Green's function
Clustering in particle chains - summation techniques for the periodic Green's function Open
1D lattice summations of the 3D Green's function are needed in many applications such as photonic crystals, antenna arrays, and so on. Such summations are usually divided into two cases, depending on the location of the observer: Out of th…
View article: Dark mode–Faraday rotation synergy for enhanced magneto-optics
Dark mode–Faraday rotation synergy for enhanced magneto-optics Open
We examine the efficacy of Dark-mode plasmonics as a platform for enhanced\nmagneto-optics. Dark-mode of a small particle consists of two co-existing\nequal-intensity and mutually opposing dipolar excitations. Each of these two\nopposing d…
View article: Modal and excitation asymmetries in magnetodielectric particle chains
Modal and excitation asymmetries in magnetodielectric particle chains Open
We study the properties of dipolar wave propagation in linear chains of\nisotropic particles with independent electric and magnetic response, embedded\nin vacuum. It is shown that the chain can support simultaneously right-handed\nmodes (R…
View article: Synergetic interaction of Dark-Modes and Faraday Rotation for Enhanced Magneto-Optics
Synergetic interaction of Dark-Modes and Faraday Rotation for Enhanced Magneto-Optics Open
We examine the efficacy of Dark-mode plasmonics as a platform for enhanced magneto-optics. Dark-mode of a small particle consists of two co-existing equal-intensity and mutually opposing dipolar excitations. Each of these two opposing dipo…
View article: Planar one-way guiding in periodic particle arrays with asymmetric unit cell and general group-symmetry considerations
Planar one-way guiding in periodic particle arrays with asymmetric unit cell and general group-symmetry considerations Open
We develop a general theory for one-way optical guiding in magnetized\nperiodic particle arrays. Necessary conditions for a non-even dispersion curves\nare derived and presented in the context of Frieze symmetry-groups. It is\nshown, for e…