Measurement of circular and linear birefringence in chiral media and optical materials using the photoelastic modulator

Baoliang Bob Wang

doi:10.1117/12.337476

22 January 1999 Measurement of circular and linear birefringence in chiral media and optical materials using the photoelastic modulator

Baoliang Bob Wang

Author Affiliations +

Proceedings Volume 3535, Advanced Sensors and Monitors for Process Industries and the Environment; (1999) https://doi.org/10.1117/12.337476
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

Circular birefringence is also called optical rotation. An experimental set-up using the photoelastic modulator (PEM) is developed in our lab for measuring small optical rotation in chiral solutions. Sugar solutions at known concentrations are used as standards to test the feasibility of the method and the sensitivity of the instrument. The sensitivity of this current instrument is determined to be 0.001 degrees. Using the same set-up, low-level linear birefringence in optical materials can also be measured at a different harmonic of the PEMs resonant frequency. Examples of monitoring residual linear birefringence for optical elements are given. Recent progress made in our lab is briefly discussed.

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Baoliang Bob Wang "Measurement of circular and linear birefringence in chiral media and optical materials using the photoelastic modulator", Proc. SPIE 3535, Advanced Sensors and Monitors for Process Industries and the Environment, (22 January 1999); https://doi.org/10.1117/12.337476

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