Birefringent and electro-optical properties of (NH4)2SO4

1 January 1976

journal article
research article
Published by Taylor & Francis in Ferroelectrics

Vol. 12 (1) , 185-187
https://doi.org/10.1080/00150197608241421

Abstract

Spontaneous birefringence and longitudinal electro-optic coefficient zc of a c-cut of ammonium sulphate crystal were measured vs. temperature. zc has been found to change sign at 218 K. Both quantities are discussed assuming coupling of refraction indices to polarization and another nonpolar parameter.

Keywords

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