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Updated: Feb 11, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Note: Comparison experimental results of the laser heterodyne interferometer for angle measurement based on the
Enzheng Zhang1, Benyong Chen1, Hao Zheng1
1Nanometer Measurement Laboratory, Zhejiang Sci-Tech University, Hangzhou 310018, China.
Abstract:
A laser heterodyne interferometer for angle measurement based on the Faraday effect is proposed. A novel optical configuration, designed by using the orthogonal return method for a linearly polarized beam based on the Faraday effect, guarantees that the measurement beam can return effectively even though an angular reflector has a large lateral displacement movement. The optical configuration and measurement principle are presented in detail. Two verification experiments were performed; the experimental results show that the proposed interferometer can achieve a large lateral displacement tolerance of 7.4 mm and also can realize high precision angle measurement with a large measurement range.
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