Abstract

Phase retardance of a liquid-crystal-based, electrically tunable wave plate as a function of voltage and incident light intensity at 10.6 μm is measured using the Stokes–MacCullaugh ellipsometry technique. At intensities of up to 900 W/cm2, device performance is found to be driven by thermal effects and not optically induced reorientation effects.

© 1990 Optical Society of America

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