Results 11 to 20 of about 515,552 (301)

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

Holographic Fabrication of 3D Moiré Photonic Crystals Using Circularly Polarized Laser Beams and a Spatial Light Modulator

open access: yesMicromachines, 2023
A moiré photonic crystal is an optical analog of twisted graphene. A 3D moiré photonic crystal is a new nano-/microstructure that is distinguished from bilayer twisted photonic crystals.
Noah Hurley   +3 more
doaj   +1 more source

Spatial solitons in quadratic 2D nonlinear photonic crystals [PDF]

open access: yes, 2007
We report on the first investigations into parametric solitary-wave formation in 2D nonlinear photonic crystals and present experimental results obtained in an hexagonally poled LiNbO3 waveguide designed for twin-beam second harmonic generation at ...
Alessia Pasquazi   +10 more
core   +2 more sources

Study of laser actions by bird’s feathers with photonic crystals

open access: yesScientific Reports, 2021
Random lasers had been made by some biomaterials as light scattering materials, but natural photonic crystals have been rarely reported as scattering materials.
Shih-Wen Chen   +6 more
doaj   +1 more source

Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal

open access: yesPhotonics, 2021
The study of twisted bilayer 2D materials has revealed many interesting physics properties. A twisted moiré photonic crystal is an optical analog of twisted bilayer 2D materials. The optical properties in twisted photonic crystals have not yet been fully
Khadijah Alnasser   +4 more
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

Inorganic scintillator surface enhancements with 2-D photonic crystals to improve light collection [PDF]

open access: yesEPJ Web of Conferences, 2023
Inorganic scintillators are widely used in various applications of gamma spectroscopy such as nuclear nonproliferation and safeguards, medical applications, space applications, and astronomy.
Surani Stuti   +4 more
doaj   +1 more source

Superprism phenomena in planar photonic crystals [PDF]

open access: yes, 2002
We utilize the anomalous dispersion of planar photonic crystals near the dielectric band edge to control the wavelength-dependent propagation of light. We typically observe an angular swing of up to 10degrees as the input wavelength is changed from 1290 ...
Wu, L   +3 more
core   +1 more source

Thin-film photonic crystal LEDs with enhanced directionality [PDF]

open access: yes, 2009
The use of photonic crystals for light extraction from light-emitting diodes (LEDs) gives the possibility to shape the farfield emission pattern. This is of particular interest for étendue-limited LED applications that require a more directional ...
Bergenek, Krister   +8 more
core   +1 more source

Indirect transitions of a signal interacting with a moving refractive index front [PDF]

open access: yes, 2014
This research was supported by the German Research Foundation DFG (EI 391/12-2).The dynamic manipulation of light can be achieved by the interaction of a signal pulse propagating through or reflected from a refractive index front.
Munoz, Michel Castellanos   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy