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Proceedings Paper

Rough surfaces profile studies using acousto-optic tunable filter
Author(s): Boris S. Gurevich; Sergey V. Andreyev; Valentin V. Shapovalov; Ilya A. Kolesov; Andrey V. Belyaev
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Paper Abstract

The experimental studies of the rough surface profile are described. These studies have been performed using acoustooptic tunable filters and optical components with strong chromatic aberration. The basic characteristic of the surface profilometer mock-up is longitudinal resolving power (by z-distance) which has to be defined according to the certain criterion. The proposed criterion is connected with the probability of missing of information unit which relates to the z-distance characterization of the device. The experimental circuit providing the surface profile measurements is described, and the experimental results are listed and discussed. The most interesting result is that defocusing is distinguished with 90% probability at electric frequency deviation of 200 kHz. The perspectives of the further improvement of information transmission by this device are discussed. It has been found that this improvement can be attained by means of the noise level decreasing to the level taking place for electric frequency of 94 MHz.

Paper Details

Date Published: 2 December 2008
PDF: 6 pages
Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 714215 (2 December 2008); doi: 10.1117/12.815417
Show Author Affiliations
Boris S. Gurevich, Scientific Instruments Co. (Russian Federation)
Sergey V. Andreyev, Scientific Instruments Co. (Russian Federation)
Valentin V. Shapovalov, Biotechnical Systems Research Institute (Russian Federation)
Ilya A. Kolesov, Biotechnical Systems Research Institute (Russian Federation)
Andrey V. Belyaev, Institute for Analytical Instrumentation (Russian Federation)

Published in SPIE Proceedings Vol. 7142:
Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6)
Janis Spigulis; Andris Krumins; Donats Millers; Andris Sternberg; Inta Muzikante; Andris Ozols; Maris Ozolinsh, Editor(s)

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