Journal Article

PUBDB-2021-03910

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Use of KDP crystal as a Kerr nonlinear medium for compressing PW laser pulses down to 10 fs

Shaykin, A. ; Ginzburg, V. ; Yakovlev, I. ; Kochetkov, A. ; Kuzmin, A. ; Mironov, S. ; Shaikin, I. ; Stukachev, S. ; Lozhkarev, V. ; Prokhorov, A. ; Khazanov, E.
Cambridge Univ. Press Cambridge

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Please use a persistent id in citations: doi:10.1017/hpl.2021.40

Abstract: The input pulse of the laser PEARL with energy of 18 J and pulse duration of about 60 fs was compressed to 10 fs after passage through a 4-mm thick KDP crystal and reflection at two chirped mirrors with sum dispersion −200 fs2. The experiments were performed for the В-integral values from 5 to 19 without visible damages of the optical elements, which indicates that small-scale self-focusing is not a significant issue. It was shown that, by virtue of the low dispersion of the group velocity, the KDP crystal has some advantages over silica: a larger pulse compression coefficient, especially at a small value of the В-integral (B=5…9), lower absolute values of chirped mirror dispersion, and also a possibility to control the magnitude of nonlinearity and dispersion by changing crystal orientation.

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Research Program(s):

1. CREMLINplus - Connecting Russian and European Measures for Large-scale Research Infrastructures - plus (871072) (871072)

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