Title :
Frequency-tunable terahertz-wave generation from GaP using Cr:forsterite lasers
Author :
Nishizawa, J. ; Suto, K. ; Sasaki, T. ; Tanabe, T.
Author_Institution :
Semicond. Res. Inst., Sendai, Japan
Abstract :
We have constructed THz spectrometers using the widely frequency-tunable THz-wave generated from GaP crystal pumped at 1.2 μm region using two Cr:forsterite lasers and compared with 1 μm using a YAG laser and an optical parametric oscillator (OPO). The systems have sufficient resolution for observation of solids and liquids. We have measured the transmittance spectra of amino acids and saccharide.
Keywords :
III-V semiconductors; chromium; gallium compounds; infrared spectroscopy; optical parametric oscillators; organic compounds; semiconductor lasers; 1 micron; 1.2 micron; Cr:forsterite lasers; GaP; GaP crystal; THz spectrometers; YAG laser; amino acids; frequency-tunable terahertz-wave generation; optical parametric oscillator; saccharide; transmittance spectra; Amino acids; Frequency; Laser excitation; Liquids; Nonlinear optics; Optical pumping; Oscillators; Pump lasers; Solids; Spectroscopy;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572396
