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Impressum
(c) 2002 BMO

"Phase-locked multi-terahertz electric fields exceeding 13 MV/cm at 190 kHz repetition rate"
Matthias Knorr, Jürgen Raab, Maximilian Tauer, Philipp Merkl, Dominik Peller, Emanuel Wittmann, Eberhard Riedle, Christoph Lange, and Rupert Huber
Opt. Lett., 42, 4367 - 4370 (2017).


Abstract:
We demonstrate a compact source of energetic and phase-locked multi-terahertz pulses at a repetition rate of 190 kHz. Difference frequency mixing of the fundamental output of an Yb:KGW amplifier with the idler of an optical parametric amplifier in GaSe and LiGaS2 crystals yields a passively phase-locked train of waveforms tunable between 12 and 42 THz. The shortest multi-terahertz pulses contain 1.8 oscillation cycles within the intensity FWHM. Pulse energies of up to 0.16 μJ and peak electric fields of 13 MV/cm are achieved. Electro-optic sampling reveals a phase stability better than 0.1 π over multiple hours combined with free CEP tunability. The scalable scheme opens the door to strong-field terahertz optics at unprecedented repetition rates.

BMO authors (in alphabetic order):
Eberhard Riedle
Emanuel Wittmann

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Letzte Änderung: 2016-09-14 13:34