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Proceedings Paper

Measurement of circular and linear birefringence in chiral media and optical materials using the photoelastic modulator
Author(s): Baoliang Bob Wang
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Paper 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.

Paper Details

Date Published: 22 January 1999
PDF: 9 pages
Proc. SPIE 3535, Advanced Sensors and Monitors for Process Industries and the Environment, (22 January 1999); doi: 10.1117/12.337476
Show Author Affiliations
Baoliang Bob Wang, Hinds Instruments, Inc. (United States)

Published in SPIE Proceedings Vol. 3535:
Advanced Sensors and Monitors for Process Industries and the Environment
Wim A. de Groot, Editor(s)

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