Compensated photorefractive phase demodulator for probing object in rapid motion

Summary from only given. Two-beam adaptive phase demodulators are used for noncontact and non-invasive measurements of the small surface displacements produced by ultrasonic waves propagating in an object. As an example the setup of a two-wave mixing-based photorefractive demodulator is shown.

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Bibliographic Details
Published inSummaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges pp. 270 - 271 vol.1
Main Authors Blouin, A., Padioleau, C., Drolet, D., Monchalin, J.-P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Demodulation
Frequency
Laser beams
Laser excitation
Optical surface waves
Photorefractive effect
Photorefractive materials
Pump lasers
Rough surfaces
Surface roughness
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Summary:Summary from only given. Two-beam adaptive phase demodulators are used for noncontact and non-invasive measurements of the small surface displacements produced by ultrasonic waves propagating in an object. As an example the setup of a two-wave mixing-based photorefractive demodulator is shown.
ISBN:1557527067
9781557527066
DOI:10.1109/CLEO.2002.1033935