Title :
The role of two-photon absorption and source size for THz generation in ZnTe
Author :
Nazarov, M.M. ; Sapozhnikov, D.A. ; Shkelnyuk, S.A. ; Shuvaev, A.V. ; Shkurinov, A.P.
Author_Institution :
Dept. of Phys., Lomonosov (M.V.) State Univ., Moscow, Russia
fDate :
27 Sept.-1 Oct. 2004
Abstract :
When focusing laser beam to a nonlinear crystal ZnTe the efficiency of THz pulse generation may be considerably limited by a two-photon absorption and small dimensions of polarization source compared to THz wavelength. The role of these factors were experimentally and theoretically studied, direction diagrams were measured.
Keywords :
II-VI semiconductors; laser beam effects; nonlinear optics; optical focusing; optical harmonic generation; submillimetre wave generation; submillimetre wave spectra; two-photon processes; zinc compounds; THz pulse generation; THz wavelength; ZnTe; laser beam focusing; nonlinear ZnTe crystal; polarization source; two photon absorption; Absorption; Laser beams; Laser theory; Nonlinear optics; Optical beams; Optical harmonic generation; Optical pulse generation; Pulse generation; Ultrafast optics; Zinc compounds;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422107
