Polarization beam splitting in a Glan-Taylor prism based on dual effects of both birefringence and Goos-Hanchen shift
Dongmei Li,
Guoan Cai,
Chenyao Song,
Chaofan Weng,
Chaoyi Chen,
Wenqiang Zheng,
Yilong Zhang,
Kan Li
Affiliations
Dongmei Li
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Guoan Cai
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Chenyao Song
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Chaofan Weng
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Chaoyi Chen
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Wenqiang Zheng
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China
Yilong Zhang
College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310027, China
Kan Li
Key Laboratory of Quantum Precision Measurement of Zhejiang Province, Center for Optics & Optoelectronics Research, Collaborative Innovation Center for Information Technology in Biological and Medical Physics, College of Science, Zhejiang University of Technology, Hangzhou, 310023, China; Corresponding author.
With the structure of biprism, polarization beam splitting in a Glan-Taylor polarizer was explored based on the birefringence and Goos-Hanchen shift. Due to the birefringence of the light in calcite crystal, the extraordinary light worked as the position calibration. As for the ordinary light, the propagated direction tilted noticeably due to the refraction as well as Goos-Hanchen effect at the prism-air interface of in the air gap. The Snell's law and stationary-phase approach were utilized for the calculation of the beam splitting between the two orthogonal polarization elements. By choosing appropriate incident angle and initial polarization, remarkable beam splitting was realized. With this configuration, the resolution with a magnitude of 10−5° and 10−3° was achieved for the response of the incident angle and polarization detection respectively.
