Acoustic and Acousto-Optic Properties of Amorphous Se

概要

論文の詳細を見る
The acoustic and acousto-optic properties of amorphous Se have been studied. It was found that amorphous Se possesses targe acousto-optic figures or merit almost comparable to those of single-crystal Te. The values obtained are M_<11>=981×10^<-18>s^3/g and M_<12>=1080×10^<-18>s^3/g at 10.6μm. The two non-vanishing independent photoelastic tensor components were determined as p_<11>=0.357 and p_<12>=0.375 at 10.6μm. In spite of these large figures of merit, pure amorphous Se is not very satisfactory as an acousto-optic medium, since the glass transition temperature of about 30℃ makes the material both optically and elastically very unstable at room temperature. However, it was found that the addition of several percent of arsenic raises the glass transition temperature significantly and improves the acoustic and acousto-optic properties.
社団法人応用物理学会の論文
1980-11-05