Homogeneous focusing with a transient soft X-ray laser for irradiations experiments

Sophie Kazamias (1) , Kevin Cassou (1) , Olivier Guilbaud (1) , Annie Klisnick (1) , David Ros (1) , Fabien Ple (1) , Gérard Jamelot (1) , Bedrich Rus (2) , M. Koslova (2) , M. Stupka (2) , T. Mocek (2) , Denis Douillet (3) , Philippe Zeitoun (3) , Denis Joyeux (4) , Daniel Phalippou (4)

1 LIXAM - Laboratoire d'interaction du rayonnement X avec la matière
2 PALS - Institute of Physics
3 LOA - Laboratoire d'optique appliquée
4 Laboratoire Charles Fabry de l'Institut d'Optique / Scop

We report the work done on a transient soft X-ray laser (SXRL) beam to deliver a proper extreme UV irradiation source for applications. The same optical tool was first demonstrated on a quasi stationnary state (QSS) soft X-Ray laser at the PALS Institute in Prague. The problem set by the transient soft X-Ray laser developed by the LIXAM at the LULI installation in Palaiseau is more crucial, first because the beam spatial profile is more irregular secondly because high repetition rate soft X-ray laser facilities in the future are based on this SXRL type. The spots obtained show a 20 micron average diameter and a rather homogeneous and smooth profile that make them a realistic irradiation source to interact with targets requiring relatively high fluence (near 1 J/cm2) or intensity (near 1011 W/cm2) in the extreme UV domain.

Domains: Optics [physics.optics]

Sophie Kazamias, Kevin Cassou, Olivier Guilbaud, Annie Klisnick, David Ros, et al.. Homogeneous focusing with a transient soft X-ray laser for irradiations experiments. Optics Communications, 2006, 263 (1), pp.98-104. ⟨hal-00575790⟩