Title :
Germanium THz lasers and THz spectrometers
Author :
Bründermann, E. ; Heugen, U. ; Bergner, A. ; Schiwon, R. ; Schwaab, G.W. ; Ebbinghaus, S. ; Chamberlin, D.R. ; Haller, E.E. ; Havenith, M.
Author_Institution :
Lehrstuhl fur Physikalische Chemie II, Ruhr-Univ., Bochum, Germany
fDate :
27 Sept.-1 Oct. 2004
Abstract :
We have set-up several far-infrared and THz spectrometers at the Ruhr-University Bochum: 1. high power spectrometer consisting of a germanium THz laser and a grating to deliver tuneable THz radiation, 2. high temporal resolution spectrometer using time-domain spectroscopy based on LTG-GaAs and ZnTe pumped by 20 fs Ti:Sa laser, 3. wide spectral response far-infrared Fourier-transform spectrometer. We present some results using these spectrometers for spectroscopy and imaging, focusing on applications in biochemistry. Potential new THz sources based on room temperature laser diodes are briefly discussed.
Keywords :
Fourier transform spectra; II-VI semiconductors; III-V semiconductors; biochemistry; diffraction gratings; elemental semiconductors; gallium arsenide; germanium; infrared spectra; molecular biophysics; optical pumping; semiconductor lasers; submillimetre wave imaging; submillimetre wave lasers; submillimetre wave spectra; zinc compounds; 20 fs; 293 to 298 K; GaAs; Ge; Ruhr University Bochum; THz radiation; THz spectroscopy; Ti:Sa laser; ZnTe; biochemistry; far infrared Fourier transform spectroscopy; germanium THz lasers; high power spectrometer; laser diodes; room temperature; temporal resolution spectroscopy; time domain spectroscopy; Germanium; Gratings; Laser excitation; Laser tuning; Power lasers; Pump lasers; Spectroscopy; Time domain analysis; Tunable circuits and devices; 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.2004.1422067
