Results 101 to 110 of about 1,192 (198)
Ultra-Wideband RCS Reduction Based on Non-Planar Coding Diffusive Metasurface
, 2020 A novel non-planar coding metasurface optimized by discrete particle swarm algorithm (DPSO) is proposed in terms of the property of wideband radar cross-section (RCS) and diffuse scattering.
Guozhang Wu; Wenqi Yu; Tao Lin; Yangyang Deng; Jianguo Liu; +5 more
core +1 more source
Terahertz Vortex Wave Generation and Reversible Beam Switching based on Coding Metasurface
Guangtongxin yanjiu【Objective】Terahertz vortex waves have a wide range of applications in the fields of broadband communications, military radar, biomedicine and detection, etc.
CHEN Xi +3 more
doaj
Resonant States Reveal Strong Light–Matter Coupling in Nanophotonic Cavities
Laser &Photonics Reviews, EarlyView.Photonic resonant states reveal characteristics of coupled light–matter systems that would otherwise be hidden by damping. Their trajectories (when tuning the optical resonance) undergo a qualitative change at the onset of strong coupling: They start swapping positions.
Jan David Fischbach +5 more
wiley +1 more source
Generation of superhelical time-varying OAM beam with space-time-coding digital metasurface
, 2022 The recently proposed extreme-ultraviolet (EUV) beams with time-varying orbital angular momentum (OAM) realized by high-harmonic generation (HHG) provides extraordinary tools for quantum excitation control and particle manipulation.
Peixing Li (14362017) +3 more
core +1 more source
Review for wireless communication technology based on digital encoding metasurfaces
Opto-Electronic AdvancesMetasurfaces offer exceptional capabilities for controlling electromagnetic waves, enabling the realization of unique electromagnetic properties. As communication technology continues to evolve, metasurfaces present promising applications in wireless ...
Haojie Zhan +12 more
doaj +1 more source
Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage
Laser &Photonics Reviews, EarlyView.The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan +7 more
wiley +1 more source
Coding Huygens’ metasurface for enhanced quality holographic imaging
Optics Express, 2019 In this paper, coding Huygens' metasurface (CHM) is proposed for holographic imaging with enhanced quality. A weighted holographic algorithm is used to calculate the phase distribution at the interface and to design the CHM. Experimental demonstration performed in the microwave region validates holographic imaging with the ability to modulate energy ...
Guan, Chunsheng +7 more
openaire +2 more sources
, 2023 A 1-bit reconfigurable metasurface reflector is designed. It can provide beam-steering of circularly polarized (CP) re- flected waves when a linearly polarized (LP) plane wave is incident upon it.
Shulabh Gupta (11171916) +1 more
core +1 more source
Revealing the Resonant Physics of Open Photonic Time Crystals
Laser &Photonics Reviews, EarlyView.ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero +5 more
wiley +1 more source
Theory of Supercritical Coupling and Generalized Bound States in the Continuum
Laser &Photonics Reviews, EarlyView.We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri +3 more
wiley +1 more source