Results 21 to 30 of about 112,677 (274)
Third- and Second-Harmonic Generation in All-Dielectric Nanostructures: A Mini Review
Frontiers in Nanotechnology, 2022 Frequency conversion such as harmonic generation is a fundamental physical process in nonlinear optics. The conventional nonlinear optical systems suffer from bulky size and cumbersome phase-matching conditions due to the inherently weak nonlinear ...
Tingting Liu +10 more
doaj +1 more source
Photonics, 2023 In this study, an all-dielectric metamaterial absorber consisting of a ring nanocavity array, a spacer layer, and a metallic substrate is designed and investigated. The simulation results show that the two perfect absorption peaks (99.91% and 99.96%) are
Fei Liu +5 more
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Infrared all-dielectric Kerker metasurfaces
Optics Express, 2021 The unidirectional scattering of electromagnetic waves in the backward and forward direction, termed Kerkers’ first and second conditions, respectively, is a prominent feature of sub-wavelength particles, which also has been found recently in all-dielectric metasurfaces.
Kebin Fan +3 more
openaire +2 more sources
Infrared All-Dielectric Metasurface Beam Splitter Based on Transflective Structures
Applied Sciences, 2023 Beam splitters are widely applied in various optical systems as a common beam-splitting device. The conventional stereoscopic and flat-type beam splitters greatly limit the packaging and integration of optical systems due to their large size and ...
Yingzheng Ren +7 more
doaj +1 more source
All-Dielectric Self-Cloaked Structures [PDF]
ACS Photonics, 2018 While practical realizations of optical invisibility have been achieved so far by various ingenious methods, they generally rely on complex materials which prevent the wide implementation of such schemes. Here, we propose an alternative indivisibility procedure to design objects (i.e.
Z. Hayran +5 more
openaire +6 more sources
Towards all-dielectric metamaterials and nanophotonics [PDF]
, 2015 We review a new, rapidly developing field of all-dielectric nanophotonics which allows to control both magnetic and electric response of structured matter by engineering the Mie resonances in high-index dielectric nanoparticles.
Belov, Pavel +5 more
core +2 more sources
Nanophotonics, 2023 All-dielectric metasurfaces have great potential as highly sensitive refractometric sensors relying on their spectral shifts because of an extensive range of design flexibilities and their smaller absorption losses than plasmonic platforms.
Watanabe Keisuke, Iwanaga Masanobu
doaj +1 more source
Enhancing Magnetic Light Emission with All-Dielectric Optical Nanoantennas [PDF]
, 2018 Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency with which matter interacts with electric optical fields is commonly accepted to be at least 4 orders of magnitude higher than with magnetic optical fields.
Aigouy, Lionel +11 more
core +5 more sources
Genetically optimized all-dielectric metasurfaces
Optics Express, 2017 We present and study theoretically a new design approach for obtaining wide angle, highly efficient, all-dielectric metasurfaces. As a concrete example we focus on optimizing flat beam deflector for both the infra-red and visible spectral regions.
Egorov, Victor +2 more
openaire +3 more sources
Applicability of point dipoles approximation to all-dielectric metamaterials [PDF]
, 2015 All-dielectric metamaterials consisting of high-dielectric inclusions in a low-dielectric matrix are considered as a low-loss alternative to resonant metal-based metamaterials.
Andryieuski, A. +2 more
core +2 more sources