Abstract

The helicoidal eigenstates of a passive Fabry–Perot resonator that contains two quarter-wave plates allow us to propose a novel polarimetric method whose sensitivity, compared with that of single-pass devices, is demonstrated to be enhanced proportionally to the square of the cavity finesse. Good agreement between the experimental and the theoretical enhancements of sensitivity is observed, and a detectability of 10⁻⁶ deg is obtained with a cavity finesse of 150.

© 1992 Optical Society of America

Measurement of small optical activities by use of helicoidal waves: erratum

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