INFLUENCE OF A GLASS MATRIX ON THE FARADAY-EFFECT IN EU2-CONTAINING GLASSES()

Faraday effect and absorption spectrum measurements have been performe d at room temperature for fluoroaluminate, berate and Ga2S3-based glas s samples containing 5 cat%Eu2+. The Verdet constant (V-c) of fluoroal uminate and berate glasses containing 5 cat%Eu2+ was negative, and the absolute value of V-c decreased with increasing wavelength. In contra st, the V-c of Ga2S3-based glass containing 5 cat%Eu2+ was negative in the short wavelength region, while it became positive in wavelength r egions longer than 635 nm. The effective transition wavelength, lambda (t), of glasses containing Eu2+ has been calculated based on the Van V leck and Hebb theory. The influence of a glass matrix on the Faraday e ffect in Eu2+-containing glasses was discussed.