Nonresonant Nonlinear Optics of Semiconductors Pumped with Ultrafast Long-wave Infrared Laser Pulses

Abstract

The nonlinear refractive index and nonlinear absorption are measured in GaAs, n-Ge, ZnSe, and Te at 10µm with intensities up to 10GW/cm2 using various methods. Mid-IR femtosecond semiconductor switching is also studied in these materials.