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Inversionless amplification of coherent THz radiation

: Janke, C.; Bolivar, P.H.; Bartels, A.; Künzel, H.; Kurz, H.

Miller, R.J.D.:
Ultrafast phenomena XIII : Proceedings of the 13th international conference, Vancouver, BC, Canada, May 12 - 17, 2002
Berlin: Springer, 2003 (Springer Series in Chemical Physics 71)
ISBN: 3-540-00089-5
International Conference on Ultrafast Phenomena <13, 2002, Vancouver>
Conference Paper
Fraunhofer HHI ()

A surface field THz emitter placed inside a high repetition-rate THz resonator is synchronously pumped by a femtosecond laser. The emitter efficiency is increased by more than one order of magnitude via amplification without inversion.