Results 31 to 40 of about 4,135,283 (192)

Form-faсtor of the holograms of composite images [PDF]

Компьютерная оптика, 2018
This article is a follow-on study of the influence of the form-factor of holograms on their optimal characteristics, such as the optimal exposure, subject to a known visibility distribution, and the maximum achievable values of the average diffraction ...
Sergey Shoydin, Aleksandr Trifanov
doaj   +1 more source

Electromagnetically Induced Grating of Surface Polaritons via Coherent Population Oscillation

Photonics, 2022
We propose a scheme to study the electromagnetically induced grating (EIG) of surface polaritons (SPs) in a negative index metamaterial/rare-earth-ion-doped crystal interface waveguide system, based on coherent population oscillation (CPO) modulating by ...
Yu Duan, Shengyan Liu, Chaohua Tan
doaj   +1 more source

Optically Tunable Diffraction Efficiency in Reflection Grating Written in Photomobile Polymers

Photonics, 2022
In this work, we report the fabrication and optical characterization of a one-dimensional reflection holographic volume phase grating recorded in a recently developed holographic photomobile composite polymer mixture.
Riccardo Castagna, Andrea Di Donato, Oriano Francescangeli, Daniele Eugenio Lucchetta   +3 more
doaj   +1 more source

Study of Optical, Electrophotographic and Holographic Parameters of As-Se Condensates from the Prehistory of the Original Bulk Materials

East European Journal of Physics
The results of a study of the optical, electrophotographic and holographic parameters of As-Se condensates from the prehistory of the original bulk materials are presented.
Sharifa B. Utamuradova, Zakirjan T. Azamatov, A.I. Popov, Mira R. Bekchanova, Murodjon A. Yuldoshev, Abror B. Bakhromov   +5 more
doaj   +1 more source

A Comment on the Relation between Diffraction and Entropy [PDF]

, 2012
Baake M, Grimm U. A Comment on the Relation between Diffraction and Entropy. Entropy. 2012;14(12):856-864.Diffraction methods are used to detect atomic order in solids.
Uwe Grimm, Grimm, Uwe, Baake, Michael, Michael Baake   +3 more
core   +1 more source

Properties of Holographic Elements Based on Periodic Structures in a Wide Range of Angles of Incidence

Photonics, 2021
An experimental study is carried out on the diffraction and angular selectivity properties of gratings for a wide range of angles of incidence in three-dimensional space.
Nadezhda Vorzobova, Pavel Sokolov
doaj   +1 more source

The Diffraction Efficiency of Acrylate-Based Holographically Photopolymerized Gratings Enhanced by the Dark Reaction

Photonics
Photopolymers, especially acrylate-based ones with low cost and simple preparation, are promising materials for high-efficiency holographic gratings. However, it is still challenging to achieve high-performance gratings, due to the influences of many ...
Ziyan Bai, Wenfeng Cai, Ming Cheng, Shun Lan, Delai Kong, Jian Shen, Mengjia Cen, Dan Luo, Yuan Chen, Yan Jun Liu   +9 more
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Energy Efficiency Board 2020 programs and operations report.

, 2021
Annual; Began with 2010; ceased with 2011.; At head of title: Connecticut Energy Efficiency ...
Connecticut. Energy Efficiency Board.
core   +1 more source

Investigation on the Full-Aperture Diffraction Efficiency of AOTF Based on Tellurium Dioxide Crystals

Photonics
The influence of acoustic field distribution and temperature variations on the full-aperture diffraction efficiency of non-collinear acousto-optic tunable filters (AOTFs) was investigated based on tellurium dioxide crystals.
Zhiyuan Mi, Huijie Zhao, Qi Guo, Zhoujun Zhong, Chengsheng Zhou   +4 more
doaj   +1 more source

Optimal Control of Passive Cascaded Liquid Crystal Polarization Gratings

Applied Sciences, 2023
The incidence angle of a beam entering a liquid crystal variable retarder (LCVR) and the liquid crystal polarization grating (LCPG) is greater when the LCPG is utilized in the quadrature cascade, which reduces the diffraction efficiency.
Huan Qin, Zhuang Liu, Qidong Wang, Qiang Fu   +3 more
doaj   +1 more source