Title :
Higher frequency enhancement of terahertz-radiation spectrum from n-type InAs by using shorter excitation pulse
Author :
Takahashi, H. ; Hasselbeck, M.P. ; Quema, Alex ; Goto, M. ; Ono, S. ; Sarukura, N.
Author_Institution :
Inst. for Molecular Sci., Okazaki, Japan
fDate :
27 Sept.-1 Oct. 2004
Abstract :
The high-frequency component of the THz-radiation spectrum from a magnetic-field immersed n-type InAs is enhanced by using laser pulses with duration shorter than the oscillation period of the hybrid modes. Such a high-frequency component is found to originate from the hybrid modes of the plasmons and the longitudinal optical (LO) phonons.
Keywords :
Fourier transform spectra; III-V semiconductors; indium compounds; laser beam effects; phonon-plasmon interactions; submillimetre wave spectra; time resolved spectra; Fourier transform spectra; InAs; THz radiation spectrum; high frequency component; higher frequency enhancement; laser pulses; longitudinal optical phonons; magnetic field immersed n-type InAs; oscillation period; plasmon hybrid modes; shorter excitation pulse; terahertz radiation spectrum; time resolved spectra; Frequency; Laser excitation; Laser modes; Optical pulses; Optical sensors; Phonons; Plasmons; Power lasers; Surface emitting lasers; Ultrafast optics;
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.2004.1422221
