Femtosecond Carrier Relaxation In Semiconductor-Doped Glasses

Abstract

Semiconductor-doped glasses, incorporating small CdSxSe1–x or CdSexTe1–x crystallites in a glass matrix, show strong nonlinear absorption1 and large values of the nonlinear optical susceptibility χ8 have been reported in recent degenerate-four-wave-mixing experiments2. This nonlinearity has been attributed to the generation of a dense electron-hole plasma in the semiconductor crystallites.