Abstract

We introduce the new k-vector dependent nonlinear optical "on-reflection" phenomenon. By specular pump-probe experiments with picosecond time resolution we found nonsteady state-induced optical activity of a hot electron-hole plasma in GaAs excited by intense linearly polarizad light. The plasma nonlocality leads to the intensity dependent change of polarization of the linearly polarized probe light reflected from the excited surface.

© 1990 Optical Society of America