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Proceedings Paper

Advances in collisionally pumped optical-field-ionization soft x-ray lasers
Author(s): Tomas Mocek; Stephane Sebban; L. M. Upcraft; I. Bettaibi; Philippe Balcou; G. Grillon; Bedrich Rus; David Ros; Annie Klisnick; Antoine Carillon; Gerard Jamelot; J. F. Wyart
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Paper Abstract

We give an overview of recent results on optical-field-ionization collisional soft X-ray lasers developed at LOA. By focusing a 30-fs, circularly polarized Ti-sapphire laser pulse at an intensity of up to 8 x 1017 Wcm-2 into a low-density gas cell containing xenon or krypton, we produced a few mm long plasma column for soft X-ray amplifier. Saturated amplification has been achieved on the 4d95d(1S0) - 4d95p(1P1) transition at 41.8 nm in Pd-like Xe, and strong lasing at 32.8 nm on the 3d94d(1S0) - 3d94p(1P1) transition in Ni-like Kr has been demonstrated. Under optimum pumping conditions the Xe IX laser provides about 5 x 109 photons per pulse while the Kr IX laser delivers up to (2-3) x 109 photons per shot. The repetition rate of these X-ray lasers is 10 Hz. The experimental results are discussed and compared to computational simulations in which issues related to plasma formation, electron energy distribution, and atomic processes are addressed.

Paper Details

Date Published: 19 December 2003
PDF: 8 pages
Proc. SPIE 5197, Soft X-Ray Lasers and Applications V, (19 December 2003); doi: 10.1117/12.504757
Show Author Affiliations
Tomas Mocek, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
Stephane Sebban, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
L. M. Upcraft, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
I. Bettaibi, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
Philippe Balcou, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
G. Grillon, Lab. d'Optique Appliquee, ENSTA/Ecole Polytechnic-CNRS (France)
Bedrich Rus, Institute of Physics (Czech Republic)
David Ros, Univ. Paris-Sud (France)
Annie Klisnick, Univ. Paris-Sud (France)
Antoine Carillon, Univ. Paris-Sud (France)
Gerard Jamelot, Univ. Paris-Sud (France)
J. F. Wyart, Univ. Paris-Sud (France)


Published in SPIE Proceedings Vol. 5197:
Soft X-Ray Lasers and Applications V
Ernst E. Fill; Szymon Suckewer, Editor(s)

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