Results 61 to 70 of about 22,239 (310)
, 2022 Coupling between light and molecular vibrational modes is dependent on efficiency of molecular absorption. Here we demonstrate how to control coupling between molecular mid-infrared absorption/emission at chemical fingerprinting spectral window and ...
Yoshiaki, Nishijima, Saulius, Juodkazis
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Quasi-Periodic Dendritic Metasurface for Integral Operation in Visible Light
Molecules, 2020 A reflective metasurface model composed of silver dendritic units is designed in this study. The integral property of this metasurface, which consists of an upper layer of dendritic structures, a silica spacer, and a bottom silver substrate was ...
Huan Chen, Di An, Xiaopeng Zhao
doaj +1 more source
Information theory of metasurfaces [PDF]
National Science Review, 2019 Abstract We propose a theory to characterize the information and information processing abilities of metasurfaces, and demonstrate the relation between the information of the metasurface and its radiation pattern in the far-field region. By incorporating a general aperture model with uncertainty relation in L2-space, we propose a theory ...
Wu, Haotian +6 more
openaire +2 more sources
Dynamic-Metasurface-Based Cavity Structures for Enhanced Absorption and Phase Modulation
, 2018 Metasurface-based optical cavity structures consist of a metallic metasurface realized on top of a dielectric slab backed with a metal plane. Such structures have been employed in the design of optical devices such as flat lenses, wave plates, and ...
Jihyun Hwang (6095045) +5 more
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Advanced Functional Materials, EarlyView.Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda +9 more
wiley +1 more source
, 2023 Terahertz (THz) band has been attracting an enormous reputation due to the paucity of natural materials in this range. Artificially flat thin films, called metasurfaces, plead the research community owing to their unprecedented features to manipulate the
Massoud, Yehia Mahmoud +3 more
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Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
IEEE Open Journal of Antennas and PropagationAn optically transparent single-layer dual-frequency dual-polarization metasurface operating at 28 GHz and 38 GHz is proposed to enhance millimeter-wave transmission through glass.
Wen Fu +6 more
doaj +1 more source
Binary THz modulator based on silicon Schottky-metasurface
, 2022 We propose a metasurface THz modulator based on split-ring resonators (SRRs) formed by four interconnected horizontal Si–Au Schottky diodes. The equivalent junction capacitance of each SRR in the proposed modulator is much smaller than that of the ...
Mohammad Neshat (21286199) +2 more
core
, 2022 Metasurfaces provide a miniaturized and superficial solution for implementing various nanophotonic devices by exploiting their unprecedented ability to spatially tailor the phase, amplitude, and polarization of the incident light.
Mehmood, Muhammad Qasim +3 more
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