Real-time polarization state measurement based on a birefringent crystal wedge. Issue 21 (29th November 2016)

• Record Type: Journal Article
• Authors: Ma, Jing; Pei, Liyan; Xu, Canhua; Yao, Yangguang
• Is Part Of: Journal of modern optics. Volume 63:Issue 21(2016)
• Page Start: 2291
• Page End: 2297
• Publication Date: 2016-11-29
• Subjects: Light polarization measurement -- birefringent crystal wedge -- interference fringe -- real-time measurement; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2016.1198501
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract: We present a method of single-shot polarization state measurement based on a birefringent crystal wedge. The phase delay and amplitude angle of detected light are encoded into two groups of fringes through the interference in a crystal wedge and further decoded by fringe position locations. This method has the merit of real-time measurement, a compact set-up and simple calibration. The principle, set-up, calibration and error analysis are presented in details. In the end, a single-shot measurement set-up with 80 kHz temporal resolution is demonstrated to investigate the molecule dynamic behaviour in a TN liquid crystal under a rectangular voltage.