1 November 1998 Angle measurement using surface-plasmon-resonance heterodyne interferometry: a new method
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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.
Jihua Guo, Zhaoming Zhu, Weimin Deng, Shuai Shen, "Angle measurement using surface-plasmon-resonance heterodyne interferometry: a new method," Optical Engineering 37(11), (1 November 1998). https://doi.org/10.1117/1.601888 . Submission:
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