Results 21 to 30 of about 186,221 (352)
Progress in molecular imprinted photonic crystals
Cailiao gongcheng, 2020 Photonic crystal is a kind of ordered material which consists of two or more periodic arranged refractive index materials, and the propagation of light can be controlled by changing its average refractive index or lattice spacing.
WANG Xiao-hui +4 more
doaj +1 more source
AIP Advances, 2018 In this study, We theoretically realized the enlargement of the photonic crystal band gap by a photonic heterostructure containing Dirac semimetal layer. At the same time, since the dielectric constant of the Dirac semimetal changes with its Fermi level,
Yunkun Zhao +3 more
doaj +1 more source
Simulation of Amorphous Silicon Carbide Photonic Crystal Absorption Layer for Solar Cells
Crystals, 2022 In this work, the amorphous silicon carbide (a-SiC) with low cost and high extinction coefficient was used as the light absorption layer of solar cells, and the photonic crystal (PC) structure and defect structure were introduced.
Lin Zhou +4 more
doaj +1 more source
Photonic crystal microchip laser [PDF]
SPIE Proceedings, 2016 AbstractThe microchip lasers, being very compact and efficient sources of coherent light, suffer from one serious drawback: low spatial quality of the beam strongly reducing the brightness of emitted radiation. Attempts to improve the beam quality, such as pump-beam guiding, external feedback, either strongly reduce the emission power, or drastically ...
Gailevicius, Darius +5 more
openaire +10 more sources
All-fiber lasers through photonic crystal fibers
Nanophotonics, 2013 A review on all-fiber lasers based on photonic crystal fibers is presented. Photonic crystal fibers present improved features beyond what conventional optical fibers can offer.
Pinto Ana M.R., Lopez-Amo Manuel
doaj +1 more source
Loss analysis of air-core photonic crystal fibers [PDF]
, 2003 By using a multipole moment approach, we analyze the loss of an air-core photonic crystal fiber and demonstrate that it is possible reduce the transmission loss that is due to photon radiation leakage through the photonic crystal cladding to a level ...
Xu, Yong, Yariv, Amnon
core +1 more source
Magnetic photonic crystals [PDF]
Journal of Physics D: Applied Physics, 2003 In this paper we outline a new direction in the area of photonic crystals (PCs), or photonic band gap materials, i.e. one-, two-, or three-dimensional superstructures with periods that are comparable with the wavelengths of electromagnetic radiation.
Lyubchanskii, I.L. +4 more
openaire +2 more sources
Synthesis and properties of SiO2 photonic crystals modified by DNA
Біофізичний вісник, 2020 Background: Photonic crystals are structures characterized by periodic modulations of the refractive index with a period commensurate with the wavelength.
M. Olenchuk +4 more
doaj +1 more source
Room temperature continuous wave operation of single-mode, edge-emitting photonic crystal Bragg lasers [PDF]
, 2008 We report the first room temperature CW operation of two dimensional single-mode edge-emitting photonic crystal Bragg lasers. Single-mode lasing with single-lobed, diffraction limited far-fields is obtained for 100μm wide and 550μm long on-chip devices ...
DeRose, Guy A. +4 more
core +2 more sources
Photonic crystal fibre characterisation with the method of lines
Journal of Telecommunications and Information Technology, 2004 Photonic crystal fibres are longitudinally uniform fibres in which in lateral directions periodic refractive index changes occur. Two basically different light guiding mechanisms occur in crystal fibres: index guiding and bandgap guiding.
Igor A. Goncharenko, Marian Marciniak
doaj +1 more source