Title :
Impact of dispersion, free carriers and two photon absorption on the generation of intense THz pulses in ZnTe crystals
Author :
Vidal, S. ; Degert, J. ; Tondusson, M. ; Oberlé, J. ; Freysz, E.
Author_Institution :
LOMA, Univ. Bordeaux 1, Bordeaux, France
Abstract :
The evolution of THz spectrum generated in a ZnTe crystal versus the intensity of ultra-short laser pulses is reported. Free carrier absorption and phase matching shift induced by two-photon absorption account for the observed phenomena.
Keywords :
high-speed optical techniques; terahertz wave spectra; two-photon spectra; wide band gap semiconductors; zinc compounds; ZnTe; crystals; free carrier absorption; intense THz pulses; phase matching shift; photon absorption; two-photon absorption; ultrashort laser pulses; Absorption; Crystals; Nonlinear optics; Optical pulses; Optical pumping; Probes; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104972
