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Optical Engineering

Angle measurement using surface-plasmon-resonance heterodyne interferometry: a new method
Author(s): Jihua Guo; Zhaoming Zhu; Weimin Deng; Shuai Shen
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Paper Abstract

A novel optical method for high-resolution angle measurement based on surface plasmon resonance (SPR) is presented. The phase difference between p and s polarization states when SPR takes place is very sensitive to the angle of incidence. Heterodyne interferometry is employed to measure this phase difference and thus to measure small angles. The feasibility of this method is demonstrated. The measurement resolution of 2×10-5 deg can be achieved by this method.

Paper Details

Date Published: 1 November 1998
PDF: 4 pages
Opt. Eng. 37(11) doi: 10.1117/1.601888
Published in: Optical Engineering Volume 37, Issue 11
Show Author Affiliations
Jihua Guo, Tsinghua University (China)
Zhaoming Zhu, Tsinghua Univ. (China)
Weimin Deng, Tsinghua Univ. (China)
Shuai Shen, Univ. of Washington (United States)


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