The development of widely-tunable monochromatic THz sources is described. These sources are based on difference-frequency generation (DFG) in GaSe, ZnGeP/sub 2/, and GaP, respectively. Using a GaSe crystal the output wavelength was tuned in the range of from 58.2 /spl mu/m to 3540 /spl mu/m (from 172 cm/sup -1/ to 2.82 cm/sup -1/) with the peak power reaching 209 W. On the other hand, based on DFG in a ZnGeP/sub 2/ crystal the output wavelength was tuned in the ranges of 83.1-1642 /spl mu/m and 80.2-1416 /spl mu/m for two phase-matching configurations, respectively. The output power reached 134 W. Finally, using a GaP crystal the output wavelength was tuned in the range of 71.1-2830 /spl mu/m whereas the highest peak power was 15.6 W.
Novel approaches to THz sources and detectors at room temperature
01.01.2005
104354 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Novel Approaches to THz Sources and Detectors at Room Temperature
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