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Proceedings Paper

Automatic installation of measuring optical activity with laser
Author(s): Dejing Hu; Wei Wu; Cunguo Wang
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Paper Abstract

This paper reports a new installation to measure optical activity of materials. The characteristics of this installation are: a magneto-optic device has two kinds of functions, first, modulating the light signal; second, making the vibration plane of polarized light rotate. By this way, the volume of the installation is reduced, no rotation mechanism is used, and the sensitivity of measurement is raised. On the other hand, a half-wave retardation plate is inserted in the light. By this wave plate we can not only remedy the defect of small linear range of magneto-optic element, but also can reduce the error of measurement by enlarging the angle of deflection, when we measure the little angle. Using program control DC supply as the linear scanning voltage, we can link the installation with computer and make the measurement automatic and fast.

Paper Details

Date Published: 5 August 1994
PDF: 3 pages
Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); doi: 10.1117/12.182168
Show Author Affiliations
Dejing Hu, Tongji Univ. (China)
Wei Wu, Tongji Univ. (China)
Cunguo Wang, Tongji Univ. (China)


Published in SPIE Proceedings Vol. 2321:
Second International Conference on Optoelectronic Science and Engineering '94

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