Results 51 to 60 of about 4,135,283 (192)

Phase gratings with tunable diffraction efficiency

open access: yesOptics Express, 2016
We present a new principle for tuning the diffraction efficiency of an optical grating and its implementation in a micro-optical device. The overlap of two phase gratings is used to vary the effective phase shift and hence the diffraction efficiency.
Moritz, Stürmer   +4 more
openaire   +3 more sources

X-ray powder diffraction analysis of methionine sulfoxide

open access: yes, 2001
Powder X-ray diffraction data for methionine sulfoxide, C5H11NO3S, obtained from the commercial amino acid, are presented in this work. Monoclinic cell parameters are: a = 15.500 Angstrom; b = 3.820 Angstrom; c = 13.490 Angstrom; 8=97.300 degrees.
Melnikov, P.   +3 more
core   +1 more source

Report of the Energy Efficiency Board. 2013.

open access: yes, 2014
Annual; Began with 2010; ceased with 2011.; At head of title: Connecticut Energy Efficiency ...
Connecticut. Energy Efficiency Board.
core   +1 more source

Study of diffraction efficiency of diffraction gratings by the modified method of variables separation

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022
Background. The purpose of this work is to study the electromagnetic wave diffraction by cylindrical diffraction gratings. Material and methods. The problem is solved using the modified method of separation of variables. Results. The modified method of
Yu.G. Smirnov   +3 more
doaj   +1 more source

Optical characterization of ultrahigh diffraction efficiency gratings [PDF]

open access: yesApplied Optics, 2006
We report on the optical characterization of an ultra-high diffraction efficiency grating in 1st order Littrow configuration. The apparatus used was an optical cavity built from the grating under investigation and an additional high reflection mirror.
Bunkowski, A.   +6 more
openaire   +4 more sources

Holographic Photopolymerizable Glass: Enhancing Exposure Sensitivity by Tailoring Photoinitiating Systems Based on BODIPY Dyes

open access: yesAdvanced Photonics Research
The photoinitiating system (PIS) is a key component of holographic materials which needs to be carefully selected and optimized to achieve efficient photopolymerization and, as a result, highly efficient holographic structures.
Tatsiana Mikulchyk   +4 more
doaj   +1 more source

National Action Plan for Energy Efficiency, Chapter 6: Energy Efficiency Program Best Practices

open access: yes, 2006
Chapter from the National Action Plan for Energy Efficiency documenting key findings from energy efficiency programs that have been successfully operating for many ...
National Action Plan for Energy Efficiency (U.S.)
core  

Considering Grayscale Process and Material Properties for Robust Multilevel Diffractive Flat Optics

open access: yesPhotonics
Arbitrarily designed flat optics directly manipulate the light wavefront to reproduce complex optical functions, enabling more compact optical assemblies and microsystem integration.
Diogo E. Aguiam   +8 more
doaj   +1 more source

Demo 23-08 Knife Edge Diffraction

open access: yes, 2001
A knife edge is slowly moved into the laser beam as the laser light is viewed on a distant screen, as seen in Figure 1. As the knife edge is inserted into the beam, the diffraction pattern of the knife edge is observed on the ...

core  

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