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Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1064 nm

: Matthäus, G.; Schreiber, T.; Limpert, J.; Nolte, S.; Torosyan, G.; Beigang, R.; Riehemann, S.; Notni, G.; Tünnermann, A.


Neev, J. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Commercial and biomedical applications of ultrafast lasers VI : 22 - 25 January 2006, San Jose, California, USA
Bellingham/Wash.: SPIE, 2006 (SPIE Proceedings Series 6108)
ISBN: 0-8194-6150-4
Paper 610813
Conference "Commercial and Biomedical Applications of Ultrafast Lasers" <6, 2006, San Jose/Calif.>
Fraunhofer IOF ()
Fraunhofer IPM ()
far infrared; terahertz; ultrafast laser

Generation of InAs-surface-emitted terahertz radiation by application of an ultrashort pulse 1064 nm parabolic fiber amplifier source is reported for the first time. The fiber amplifier delivers 100 fs pulses at a repetition rate of 75 MHz and an average power of maximum 12 W. This new excitation laser for surface-emitters generates high brightness broadband THz radiation ranging from 100 GHz to over 2.5 THz. THz detection is demonstrated based on two-photon absorption at low-temperature-grown GaAs dipole receivers.