Nonlinear free-carrier velocity induced by intense terahertz pulse in photoexcited semiconductor materials

F. H. Su; G. Sharma; F. Blanchard; L. Razzari; A. Ayesheshim; R. Morandotti; T. Ozaki; F. A. Hegmann

doi:10.1117/12.900526

11 August 2011 Nonlinear free-carrier velocity induced by intense terahertz pulse in photoexcited semiconductor materials

F. H. Su, G. Sharma, F. Blanchard, L. Razzari, A. Ayesheshim, R. Morandotti, T. Ozaki, F. A. Hegmann

Author Affiliations +

Proceedings Volume 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications; 81950T (2011) https://doi.org/10.1117/12.900526
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

The transient absorption bleaching and velocity overshoot of photoexcited carriers in GaAs and Si have been observed by the intense few-circle terahertz (THz) probe pulse in the optical pump-terahertz probe (OPTP) configuration. The free-carrier THz nonlinearity is attributed to the transient electron redistribution in conduction band induced by the strong THz electric field component.

Citation Download Citation

F. H. Su, G. Sharma, F. Blanchard, L. Razzari, A. Ayesheshim, R. Morandotti, T. Ozaki, and F. A. Hegmann "Nonlinear free-carrier velocity induced by intense terahertz pulse in photoexcited semiconductor materials", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81950T (11 August 2011); https://doi.org/10.1117/12.900526

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