Results 31 to 40 of about 2,694,501 (323)

Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies [PDF]

open access: yes, 2013
Photonic band gap and transmission characteristics of 2D metallic photonic crystals at THz frequencies have been investigated using finite element method (FEM).
Degirmenci, Elif, Landais, Pascal
core   +1 more source

Fabrication of photonic band-gap crystals [PDF]

open access: yes, 1995
We describe the fabrication of three-dimensional photonic crystals using a reproducible and reliable procedure consisting of electron beam lithography followed by a sequence of dry etching steps.
Cheng, C. C., Scherer, A.
core   +1 more source

Photonic time crystals [PDF]

open access: yesScientific Reports, 2017
AbstractWhen space (time) translation symmetry is spontaneously broken, the space crystal (time crystal) forms; when permittivity and permeability periodically vary with space (time), the photonic crystal (photonic time crystal) forms. We proposed the concept of photonic time crystal and rewritten the Maxwell’s equations.
Zeng, Lunwu   +6 more
openaire   +2 more sources

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

Lithographic band gap tuning in photonic band gap crystals [PDF]

open access: yes, 1996
We describe the lithographic control over the spectral response of three-dimensional photonic crystals. By precise microfabrication of the geometry using a reproducible and reliable procedure consisting of electron beam lithography followed by dry ...
Arbet-Engels, V.   +3 more
core   +1 more source

Photonic crystal microchip laser [PDF]

open access: yesSPIE 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   +5 more sources

Predictive and generative machine learning models for photonic crystals

open access: yesNanophotonics, 2020
The prediction and design of photonic features have traditionally been guided by theory-driven computational methods, spanning a wide range of direct solvers and optimization techniques.
T. Christensen   +8 more
semanticscholar   +1 more source

Entangling Atoms in Photonic Crystals [PDF]

open access: yes, 1999
We propose a method for entangling a system of two-level atoms in photonic crystals. The atoms are assumed to move in void regions of a photonic crystal. The interaction between the atoms is mediated either via a defect mode or via resonant dipole-dipole
Buzek, Vladimir, Konopka, Martin
core   +2 more sources

Tutorial: Computing Topological Invariants in 2D Photonic Crystals [PDF]

open access: yesAdvanced Quantum Technologies, 2019
The field of topological photonics emerged as one of the most promising areas for applications in transformative technologies: possible applications are in topological lasers or quantum optics interfaces.
María Blanco de Paz   +7 more
semanticscholar   +1 more source

Photonic Crystals with a Defect Fabricated by Two-Photon Polymerization for the Infrared Spectral Range

open access: yesOptics, 2021
One-dimensional photonic crystals composed of alternating layers with high- and low-density were fabricated using two-photon polymerization from a single photosensitive polymer for the infrared spectral range. By introducing single high-density layers to
Victoria Paige Stinson   +4 more
doaj   +1 more source

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