Diffractive beam splitter for laser Doppler velocimetry
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|Title:||Diffractive beam splitter for laser Doppler velocimetry||Authors:||Schmidt, J.
Sheridan, John T.
|Permanent link:||http://hdl.handle.net/10197/3292||Date:||1-Sep-1992||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.||Funding Details:||Not applicable||Type of material:||Journal Article||Publisher:||Optical Society of America||Copyright (published version):||1992 Optical Society of America||Subject LCSH:||Beam splitters
Laser Doppler velocimeter
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
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