Results 31 to 40 of about 515,552 (301)
The development of infrared stealth technology based on photonic crystals [PDF]
Zhihui kongzhi yu fangzhen, 2023 The dielectric materials with different refractive index are periodically arranged according to a certain structure to form photonic crystals, which can control the photon transmission regularly.
JIN Bin, SUN Haiwen
doaj +1 more source
Optimization of Photonic Nanocrystals for Invisibility Using Artificial Intelligence [PDF]
Journal of Advanced Materials in EngineeringPhotonic crystals are structures that can control the propagation of light by creating periodic changes in the refractive index. These structures facilitate directing electromagnetic waves in specific directions and making objects invisible by creating a
Z. Dorrani
doaj +1 more source
Photonic crystals as functional mirrors for semiconductor lasers [PDF]
, 2008 In recent years, interest has grown in the research fields of semiconductor lasers and photonic crystals. This thesis looks at integrating photonic crystals into existing semiconductor laser technology to act as functional laser mirrors.
Moore, Stephen A.
core +2 more sources
Selenic acid anodizing of aluminium for preparation of 1D photonic crystals
Electrochemistry Communications, 2019 Anodizing of aluminium under oscillating conditions is a reproducible, scalable, and low-cost method for the preparation of one-dimensional photonic crystals with photonic band gaps in the visible and near-infrared regions. For this purpose, sulfuric and
A.I. Sadykov +4 more
doaj +1 more source
Spatiotemporal Photonic Crystals
Conference on Lasers and Electro-Optics, 2020 We study photonic systems periodic in both time and space - spatiotemporal photonic crystals, and find that their bandstructure contains both frequency and momentum bandgaps. When the two types of bandgaps coincide, anomalous bandstructure is observed.
Yonatan Sharabi +4 more
openaire +1 more source
Advances in Physics: X, 2021 Topological photonics is an emerging field that attracts enormous interest for its novel ways to engineer the flow of light. With the help of topological protection, the surface modes of topological photonic systems have intriguing properties, such as ...
Jian-Wei Liu +6 more
doaj +1 more source
Application of finite element methods to photonic crystal modelling [PDF]
, 2002 Photonic Crystals (PCs) are materials with a periodically modulated dielectric constant, through which certain frequencies of electromagnetic radiation cannot propagate.
Hiett, B.P. +7 more
core +2 more sources
Band-edge-induced Bragg diffraction in two-dimensional photonic crystals [PDF]
, 2006 Two-dimensional photonic crystals composed of two orthogonal volume diffraction gratings have been photogenerated in photopolymers. When the read beam is set at the Bragg angle, the diffraction efficiency of the transmission grating is strongly enhanced ...
He, Qiong +5 more
core +1 more source
Location and Topology of the Fundamental Gap in Photonic Crystals
Physical Review X, 2022 The fundamental, or first, band gap is of unmatched importance in the study of photonic crystals. Here, we address precisely where this gap can be opened in the band structure of three-dimensional photonic crystals.
Thomas Christensen +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source