Limits of different detection schemes used in the optical beam deflection method
作者:
A. Garcı´a-Valenzuela,
期刊:
Journal of Applied Physics
(AIP Available online 1997)
卷期:
Volume 82,
issue 3
页码: 985-988
ISSN:0021-8979
年代: 1997
DOI:10.1063/1.365941
出版商: AIP
数据来源: AIP
摘要:
The theoretical performances of a split detector and a lateral effect detector used as a position sensitive device in the optical beam deflection method are compared. It is shown that the limit to the resolution in both cases is essentially equal. The possibility of improving the resolution in angle deflection by reflecting the beam from a cylindrical mirror, as was recently proposed by A. Yarai, Y. Fukunaga, K. Sakamoto, and T. Nakanishi [Jpn. J. Appl. Phys.33, 3251 (1994)] is also explored. It is shown that using a cylindrical mirror does not result in a smaller theoretical limit to the resolution. However, it does improve the resolution in some cases and may have practical uses. ©1997 American Institute of Physics.
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