A spectrum for the electro-optic coefficient of cadmium telluride measured from 3 to 14 μm is reported. The spectrum shows that the quantity n3r41 has a nearly constant value of 1.09 × 10−10 m/V over this spectral band, with a slight (5%) dip at the weak absorption band centered at 6 μm. Measurements were performed with an infrared Mueller matrix spectropolarimeter. Transmission spectra of the Mueller matrix were acquired at a set of applied voltages. Retardance spectra were calculated from Mueller matrix spectra, and then the electro-optic coefficient was calculated at each wavelength by a least-squares fit to the resulting retardance as a function of voltage.
© 1994 Optical Society of America
Original Manuscript: April 7, 1994
Revised Manuscript: April 7, 1994
Published: November 1, 1994
David B. Chenault, Russell A. Chipman, and Shih-Yau Lu, "Electro-optic coefficient spectrum of cadmium telluride," Appl. Opt. 33, 7382-7389 (1994)