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Diffractive beam splitter for laser Doppler velocimetry
Date Issued
1992-09-01
Date Available
2011-11-03T16:48:53Z
Abstract
A miniaturized sensor head for the optical measurement of velocities of fluids based on laser Doppler velocimetry is demonstrated. Holographic optical elements mounted on a glass substrate are used for beam splitting and deflection. Volume holograms in dichromated gelatin exhibit good optical efficiency (75% transmission of a cascade of two holographic optical elements). With diffractive devices one can achieve achromatic behavior that makes the sensor insensitive to wavelength drifts or mode hopping of a semiconductor laser.
Sponsorship
Not applicable
Type of Material
Journal Article
Publisher
Optical Society of America
Journal
Optics Letters
Volume
17
Issue
17
Start Page
1240
End Page
1242
Copyright (Published Version)
1992 Optical Society of America
Subject – LCSH
Beam splitters
Laser Doppler velocimeter
Web versions
Language
English
ISSN
0146-9592 (print)
1539-4794 (online)
This item is made available under a Creative Commons License
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Diffractive beamsplitter for laser doppler velocimetry.pdf
Size
378.22 KB
Format
Adobe PDF
Checksum (MD5)
66ee7b346d511b32864b727713c3b680
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