Medium range order and optical properties of As 2S 3 glass

Abstract

Low frequency Raman scattering and optical absorption edge were measured for As 2S 3 glasses quenched at temperature in the supercooling region of the glasses. It was found that both the Raman spectrum and the optical absorption edge shift to the lower energy side with the rise of the quenching temperature. The effects were interpreted in terms of the order of the arrangements of the layer-like clusters, which become more random as the quenching temperature goes higher.