Title :
Study of ultrabroadband terahertz radiation from wedge-shaped ZnTe
Author :
Nakajima, M. ; Tani, M. ; Hangyo, M.
Author_Institution :
Inst. of Solid State Phys., Tokyo Univ., Chiba, Japan
fDate :
27 Sept.-1 Oct. 2004
Abstract :
We report detailed thickness dependence of ultrabroadband terahertz (THz) radiation using wedge-shaped ZnTe. The spectral width and intensity of the radiation strongly depend on the thickness. The THz radiation at ∼10-μm thickness has a pulse width of ∼50 fs and the spectrum extends up to ∼50 THz. Several spectral dips whose frequency depends on the thickness systematically are observed and explained by the phase matching condition.
Keywords :
II-VI semiconductors; optical phase matching; spectral line intensity; submillimetre wave spectra; zinc compounds; 10 micron; 50 THz; 50 fs; ZnTe; phase matching; spectral intensity; spectral width; ultrabroadband terahertz radiation; wedge shaped ZnTe; Detectors; Frequency; Gallium arsenide; Laser excitation; Optical pulses; Space vector pulse width modulation; Spectroscopy; Surface emitting lasers; Transmitting antennas; 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.2004.1422003
