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Proceedings Paper

Color Image Scanning Using Acousto-Optic Interaction With Surface Waves
Author(s): P. Das; D. Schumer; F.M. Mohammed Ayub
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Paper Abstract

The scanning of a one dimensional multi-color light intensity distribution by means of the acousto-optic interaction using acoustic surface waves is presented. In the experiment laser sources of different color are used to image a multi-color transparency into the surface region of a LiNbO, surface acoustic wave light modulator. An rf acoustic pulse propagating on the LiNbO surface scans this ithage and diffracts the light. Each color component is then individually detected in the3diffracted light by means of a photodiode. Four different device schemes are compared, being classified by the configuration through which the light and acoustic beams interact. Applications of the system to producing a real-time signal of the Fourier transform of an optical transparency and to electronic focusing by use of chirped acoustic waves are also discussed. Argon and HeNe lasers are used as light sources, and center frequency of the surface acoustic wave varies from 45 to 100 MHz.

Paper Details

Date Published: 10 January 1977
PDF: 6 pages
Proc. SPIE 0084, Laser Scanning Components and Techniques: Design Considerations/Trends, (10 January 1977); doi: 10.1117/12.954924
Show Author Affiliations
P. Das, Rensselaer Polytechnic Institute (United States)
D. Schumer, Rensselaer Polytechnic-Institute (United States)
F.M. Mohammed Ayub, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 0084:
Laser Scanning Components and Techniques: Design Considerations/Trends
Leo Beiser; Gerald F. Marshall, Editor(s)

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