Results 11 to 20 of about 21,491 (266)

Photonic crystal spectrometer

open access: yesOptics Express, 2010
9 pages, 6 figures; discussion of light extraction and more experimental details ...
Pervez, Nadia K.   +5 more
openaire   +3 more sources

Tunability and enlargement of omnidirectional transmission frequency range in a photonic heterostructure containing Dirac semimetal

open access: yesAIP 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

Fabrication of 3D photonic band gap crystals for controlling the emission of light [PDF]

open access: yesEPJ Web of Conferences
3D photonic band gap crystals can be used to manipulate light, for example to increase the emission of an emitter. An inverse woodpile photonic band gap crystal has been fabricated in silicon by FIB lithography and reactive ion etching.
Goodwin Melissa J.   +6 more
doaj   +1 more source

Progress in molecular imprinted photonic crystals

open access: yesCailiao 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

Refractive index sensing of gases based on a one-dimensional photonic crystal nanocavity [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2015
Silicon photonic crystal sensors have become very attractive for various optical sensing applications. Using silicon as a material platform provides the ability to fabricate sensors with other photonic devices on a single chip.
M. Mohebbi
doaj   +1 more source

Research and Application Progress of Inverse Opal Photonic Crystals in Photocatalysis

open access: yesInorganics, 2023
In order to solve the problem of low photocatalytic efficiency in photocatalytic products, researchers proposed a method to use inverse opal photonic crystal structure in photocatalytic materials.
Hongming Xiang   +4 more
doaj   +1 more source

All-fiber lasers through photonic crystal fibers

open access: yesNanophotonics, 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

Synthesis and properties of SiO2 photonic crystals modified by DNA

open access: yesБіофізичний 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

Photonic crystal fibre characterisation with the method of lines

open access: yesJournal 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

Numerical simulation of a novel bilayer photonic crystal slab biosensor with hexagonal lattice

open access: yesResults in Physics, 2019
A new type of silicon-based bilayer photonic crystal slab biosensor is proposed based on the theoretical investigation of various parameters of two-dimensional photonic crystal slab on the peak wavelength and characteristics of the reflection spectrum ...
Daohan Ge   +4 more
doaj   +1 more source

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