Birefringence and transmission of an antireflection-coated sulfur-free cadmium selenide Wollaston prism at 30K

We present a determination of the change with temperature and wavelength of the degree of birefringence of a cold (~30 K) Wollaston prism constructed from antireflection (AR)–coated sulfur-free cadmium selenide (CdSe). We compare the normalized birefringence for the material to that estimated by the Sellmeier-4 formula and to previously published measurements of a warm sample of sulfur-free CdSe. Finally, we measure the transmission as a function of wavelength.

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