High-order harmonic generation using a multi-jet gas puff target

Tomasz Fok, Łukasz Węgrzyński, Michaela Kozlova, Jaroslav Nejdl, Przemysław Wachulak, Roman Jarocki, Andrzej Bartnik, Henryk Fiedorowicz


Results on high-order harmonics generation (HHG) by focusing a high power femtosecond laser pulse onto a multi-jet gas puff target with modulated gas density are presented. The use of this target makes possible to increase efficiency of HHG by quasi-phase matching (QPM). Preliminary measurements of high-order harmonics in the extreme ultraviolet range for various experimental parameters are presented. Some improvement of the emission characteristics was observed.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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