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Direct low-harmonic generation in gas at MHz repetition rate

By L. Petraviciute-Lötscher, L. Schneider, P. Rußbüldt, B. Gronloh, H.-D. Hoffmann, M.F. Kling and A. Apolonski

Abstract

High harmonic generation (HHG) at multi-megahertz pulse repetition rates is challenging, since pulse energy is several orders of magnitudes lower for such lasers than for those conventionally used for the HHG: micro-joules instead of milli-joules. However we have observed the 5th and 7th harmonic (till approx. 17 eV) with 5 μJ pulses at 50 MHz repetition rate with frequency doubled Yb:YAG Innoslab amplifier. The single-pass HHG with the Innoslab amplifier at 20.8 MHz repetition rate was demonstrated [1]. For these experiments the nonlinear pulse compression was implemented

Year: 2013
DOI identifier: 10.1109/CLEOE-IQEC.2013.6800880
OAI identifier: oai:fraunhofer.de:N-290637
Provided by: Fraunhofer-ePrints
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