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Phase-locked multi-terahertz electric fields exceed 13 MV/cm at 190 kHz repetition rate

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Knorr, Matthias ; Raab, Jürgen ; Tauer, Maximilian ; Merkl, Philipp ; Peller, Dominik ; Wittmann, Emanuel ; Riedle, Eberhard ; Lange, Christoph ; Huber, Rupert
Date of publication of this fulltext: 26 Oct 2017 12:36


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 ...


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