Deep-Subwavelength Holey Acoustic Second-Order Topological Insulators.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201904682
Abstract: Higher-order topological insulators (HOTIs) belong to a new class of materials with unusual topological phases. They have garnered considerable attention due to their capabilities in confining energy at the hinges and corners, which is entirely… read more here.
Keywords: topological insulators; subwavelength holey; deep subwavelength; order topological ... See more keywords
Highly Efficient Gradient Solid Immersion Lens with Large Numerical Aperture for Broadband Achromatic Deep Subwavelength Focusing and Magnified Far Field
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Optical Materials"
DOI: 10.1002/adom.202100509
Abstract: Achromatic deep subwavelength lens with large numerical aperture (NA) is in urgent need in several fields, from optical imaging, photolithography, spectroscopy, nanophotonics to microwave engineering and sensing. However, the previous proposed approaches to achieve deep… read more here.
Keywords: subwavelength; magnified far; far field; deep subwavelength ... See more keywords
Multiphoton Upconversion Enhanced by Deep Subwavelength Near-Field Confinement.
Sign Up to like & getrecommendations! Published in 2021 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c00232
Abstract: Efficient generation of anti-Stokes emission within nanometric volumes enables the design of ultracompact, miniaturized photonic devices for a host of applications. Many subwavelength crystals, such as metal nanoparticles and two-dimensional layered semiconductors, have been coupled… read more here.
Keywords: enhanced deep; multiphoton upconversion; field; deep subwavelength ... See more keywords
A novel approach to Fabry–Pérot-resonance-based lens and demonstrating deep-subwavelength imaging
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-67409-4
Abstract: During our research, we explored a novel way to represent subwavelength imaging and derived a transmission equation to explicate the FP (Fabry – Pérot) resonance phenomena. Subsequently, using analysis and observation, we performed deep-subwavelength imaging.… read more here.
Keywords: rot resonance; deep subwavelength; fabry rot; subwavelength ... See more keywords
Experimental validation of deep-subwavelength diffusion by acoustic metadiffusers
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5114877
Abstract: An acoustic metadiffuser is a subwavelength locally resonant surface relying on slow sound propagation. Its design consists of rigidly backed slotted panels, with each slit being loaded by an array of Helmholtz resonators. Due to… read more here.
Keywords: diffusion; deep subwavelength; subwavelength diffusion; experimental validation ... See more keywords
High absorption asymmetry enabled by a deep-subwavelength ventilated sound absorber
Sign Up to like & getrecommendations! Published in 2021 at "Applied Physics Letters"
DOI: 10.1063/5.0055157
Abstract: Ventilated sound isolation platforms enabling asymmetric absorption have demonstrated great scientific significance and promising applicability. However, common designs composed of variant resonant meta-atoms present complicated frameworks and poor flexibility in operating frequency modulations, let alone… read more here.
Keywords: absorption; absorption asymmetry; deep subwavelength; ventilated sound ... See more keywords
Localized manipulation of spoof surface acoustic skyrmions with deep-subwavelength gradient structures
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0145611
Abstract: Skyrmions with stable vector field configurations have produced various derivatives with various topological textures, such as the Néel type, Bloch type, anti-type, and higher-order Néel type. Here, we theoretically and experimentally demonstrate that the vector… read more here.
Keywords: manipulation spoof; localized manipulation; spoof surface; deep subwavelength ... See more keywords
Terahertz structured deep-subwavelength plasmonic grating metasurface for manipulating polarization-dependent coupling response
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/ad3019
Abstract: The complex electromagnetic anisotropy of terahertz (THz) metasurfaces with geometric symmetry breaking has attracted extensive attention. Typical effects arise from the coupling of polarization responses in orthogonal directions of various components of the metasurface structure,… read more here.
Keywords: dependent coupling; deep subwavelength; polarization dependent; polarization ... See more keywords
Deep-subwavelength single grooves prepared by femtosecond laser direct writing on Si
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ad4cd6
Abstract: It is well known that femtosecond laser pulses can easily spontaneously induce deep-subwavelength periodic surface structures on transparent dielectrics but not on non-transparent semiconductors. Nevertheless, in this study, we demonstrate that using high-numerical-aperture 800 nm… read more here.
Keywords: deep subwavelength; femtosecond laser; subwavelength single; subwavelength ... See more keywords
Suspended Dielectric Mirrors at Deep Subwavelength Scale
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2018.2850883
Abstract: Reduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it… read more here.
Keywords: subwavelength scale; mirrors deep; deep subwavelength; thickness ... See more keywords
Measurement of deep-subwavelength emitter separation in a waveguide-QED system.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.031997
Abstract: In the waveguide quantum electrodynamics (QED) system, emitter separation plays an important role for its functionality. Here, we present a method to measure the deep-subwavelength emitter separation in a waveguide-QED system. In this method, we… read more here.
Keywords: system; deep subwavelength; waveguide qed; emitter separation ... See more keywords