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Optical Engineering

Practical system for time-resolved holographic interferometry
Author(s): Torgny E. Carlsson; Bjorn Olle Nilsson; Jonny Gustafsson; Nils H. Abramson
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Paper Abstract

An easily implemented and easily manageable system for timeresolved holographic interferometry is presented. The system consists of a multiple-pulsed Q-switched ruby laser and a rotating disk having radial slits with a constant angular separation. The disk is used to scan the reference beam along a holographic plate, thereby achieving spatial multiplexing. Since the influence on the beam is negligible and a single slit is illuminated by every laser pulse, there is no need for synchronization. The interferometric pattern is achieved by removing the disk and exposing a reference image on the holographic plate. The system may serve as an excellent tool for full-field dynamic measurements. A simple experiment has been performed showing a sequence of momentary interference patterns on a vibrating plate.

Paper Details

Date Published: 1 July 1991
PDF: 6 pages
Opt. Eng. 30(7) doi: 10.1117/12.55878
Published in: Optical Engineering Volume 30, Issue 7
Show Author Affiliations
Torgny E. Carlsson
Bjorn Olle Nilsson, Royal Institute of Technology (Sweden)
Jonny Gustafsson, Holovision AB (Sweden)
Nils H. Abramson, Royal Institute of Technology (Sweden)

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