Title :
Terahertz nonlinear spectroscopy of free-carriers in semiconductors
Author :
Razzari, L. ; Blanchard, F. ; Su, F.H. ; Sharma, G. ; Ayesheshim, A. ; Cocker, T.L. ; Titova, L.V. ; Bandulet, H.-C. ; Morandotti, R. ; Kieffer, J.C. ; Ozaki, T. ; Reid, M. ; Hegmann, F.A.
Author_Institution :
Adv. Laser Light Source, Univ. du Quebec, Varennes, QC, Canada
Abstract :
The nonlinear interaction of intense few-cycle terahertz pulses with free carriers in semiconductors is studied in both n-doped and photoexcited systems. Intervalley scattering is found to cause ultrafast modulation and bleaching of the terahertz absorption.
Keywords :
high-speed optical techniques; light absorption; light scattering; semiconductor lasers; terahertz spectroscopy; few-cycle terahertz pulses; intervalley scattering; nonlinear interaction; terahertz absorption; terahertz nonlinear spectroscopy; ultrafast modulation; Bleaching; Frequency; Laser excitation; Nonlinear optics; Optical pulses; Optical scattering; Physics; Probes; Spectroscopy; Ultrafast optics;
Conference_Titel :
LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE
Conference_Location :
Belek-Antalya
Print_ISBN :
978-1-4244-3680-4
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2009.5343386
