Rough surfaces profile studies using acousto-optic tunable filter

Boris S. Gurevich; Sergey V. Andreyev; Valentin V. Shapovalov; Ilya A. Kolesov; Andrey V. Belyaev

doi:10.1117/12.815417

2 December 2008 Rough surfaces profile studies using acousto-optic tunable filter

Boris S. Gurevich, Sergey V. Andreyev, Valentin V. Shapovalov, Ilya A. Kolesov, Andrey V. Belyaev

Proceedings Volume 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6); 714215 (2008) https://doi.org/10.1117/12.815417
Event: Sixth International Conference on Advanced Optical Materials and Devices, 2008, Riga, Latvia

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.

Citation Download Citation

Boris S. Gurevich, Sergey V. Andreyev, Valentin V. Shapovalov, Ilya A. Kolesov, and Andrey V. Belyaev "Rough surfaces profile studies using acousto-optic tunable filter", Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 714215 (2 December 2008); https://doi.org/10.1117/12.815417

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