Abstract

A determination of the refractive indices of thin films of oxygen, nitrogen, carbon dioxide, water, argon, neon, and krypton condensed at 4.2°K was made. These were obtained for the 5461 A line of Hg with an ellipsometer. Similar measurements were also made on films of these gases condensed after passage through a microwave discharge. With the exception of N2 and Kr, measurable differences in refractive indices were observed between films condensed from discharged and undischarged gases.

© 1959 Optical Society of America

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