Abstract

Color glass filters doped with small semiconductor (CdS_xSe_1−x) crystallites have been shown¹ to have very large third-order susceptibilities (n₂ ≃ 10⁻¹³−10⁻¹⁴ m²/W). They are potentially very useful for a variety of all-optical signal processing operations, such as testability, optical logic, or degenerate four-wave mixing, providing that the relaxation time of the nonlinearity is sufficiently fast. An upper limit of 1 nsec has been reported for the carrier lifetimes by Jain and Lind.¹

© 1985 Optical Society of America