Results 81 to 90 of about 200,139 (222)
Tubular optical microcavities based on rolled-up photonic crystals
APL Photonics, 2020 The self-rolling of micro-structured membranes via the stress-engineering method opens new ways to create 3D photonic micro-objects with original designs and optical properties. This article validates this approach by producing 3D hollow micro-resonators
Rémi Briche +7 more
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Beilstein Journal of Nanotechnology, 2019 The structural color of angle-sensitive photonic crystals has attracted great interest because of a possible application in visual sensors. The appearance of a photonic crystal is mainly influenced by the optical properties, structural parameters and the
Xu Zheng +5 more
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Self-assembled tunable photonic hyper-crystals [PDF]
Scientific Reports 4, 5706 (2014), 2013 We demonstrate a novel artificial optical material, a photonic hyper-crystal, which combines the most interesting features of hyperbolic metamaterials and photonic crystals. Similar to hyperbolic metamaterials, photonic hyper-crystals exhibit broadband divergence in their photonic density of states due to the lack of usual diffraction limit on the ...
arxiv
AIP Advances, 2019 A 1D plasma photonic crystal (PPC) is filled with plasmas and slab dielectrics in a large volume cylindrical glow discharge device. The parameters of the PPC are designed to meet the transmission condition of broadband microwave (1.5GHz-12GHz) according ...
Jingfeng Yao +7 more
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Thermal emission by photonic micro-textured surfaces [PDF]
arXiv, 2005 Ordinary metallic photonic crystals (PCs) have photonic band gaps in which the density of states (DOS) is strongly modified. Thermal emission of photons can be suppressed and enhanced accordingly. We consider the thermal emission characteristics of a metallic photonic crystal slab with a tunable thickness which in the thick limit approaches that of a ...
arxiv
Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities [PDF]
, 1998 Brian D’Urso +5 more
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Higher-order modes excitation in generator with photonic crystal
Results in Physics, 2019 We revealed physical processes responsible for the excitation of higher-order modes in volume free-electron laser with photonic crystal. We discovered the new approach for the selection of the electromagnetic modes in volume free-electron laser with ...
Artem A. Badarin +5 more
doaj
Light: Science & ApplicationsBenefitting from narrow beam divergence, photonic crystal surface-emitting lasers are expected to play an essential role in the ever-growing fields of optical communication and light detection and ranging.
Ziye Wang +8 more
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Symmetry reduction in group4mmphotonic crystals [PDF]
, 1997 Cheryl M. Anderson +1 more
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IEEE Photonics Journal, 2015 In this paper, we fabricated NaYF 4:Yb3+, Er3+, Tm3+ nanocrystal/opal photonic crystal composites by depositing NaYF 4:Yb3+, Er3+, Tm3+ nanocrystals on the surface of opal photonic crystals, and we investigated the influence of photonic bandgaps on ...
Z. W. Yang +5 more
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