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Proceedings Paper

Design of efficient soft X-ray laser using neonlike Fe driven by iodine laser
Author(s): Bedrich Rus; P. B. Holden; Tomas Mocek; Milan Kalal; Philippe Zeitoun; Stephane Sebban; A. Demir; Gerard Jamelot; Bozena Kralikova; Josef Krasa; Ladislav Pina; Jiri Skala; Gregory J. Tallents
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Paper Abstract

In this contribution we outline our program aimed at obtaining an efficient soft x-ray laser at the wavelength 25.5 nm, using collisional excitation in a neonlike iron plasma. The goal of the research that we are pursuing is to develop a relatively small-scale soft x-ray laser that would be accessible for a variety of applications. A driver available for us is the laser iodine photodissociation laser system PERUN, providing on the order of 40 joules in on the order of 400 ps (FWHM) pulses at the fundamental wavelength 1.315 micrometer. Theoretical analysis based on Z-scaling as well as detailed computer modeling of neonlike Fe plasmas suggest driving energies of approximately equals 15 Jcm-1 should be sufficient to generate high gain coefficients (up to 7 cm-1) on the J equals 0 minus 1 line at 25.5 nm. The modeling reveals that a 1.315 micrometer iodine driver is more efficient in producing J equals 0 minus 1 amplification in this moderate-Z system than a 1.06 micrometer Nd:glass driver. As optimizing of pumping conditions is imperative for the feasibility of the project, we have started our experimental effort by investigating plasmas analogous to those created by a small-level prepulse, i.e. by intensities ranging from approximately 5 multiplied by 109 to approximately 1.3 multiplied by 1011 Wcm-2. Preliminary results of this study are discussed elsewhere in this Proceedings.

Paper Details

Date Published: 13 February 1996
PDF: 8 pages
Proc. SPIE 2767, Fourth International Workshop on Iodine Lasers and Applications, (13 February 1996); doi: 10.1117/12.232176
Show Author Affiliations
Bedrich Rus, Institute of Physics (Czech Republic)
P. B. Holden, Institute of Physics (Czech Republic)
Tomas Mocek, Institute of Physics (Czech Republic)
Milan Kalal, Czech Technical Univ. (Czech Republic)
Philippe Zeitoun, Univ. of Essex (UK) and Univ. Paris-Sud (France)
Stephane Sebban, Univ. Paris-Sud (France)
A. Demir, Univ. of Essex (United Kingdom)
Gerard Jamelot, Univ. Paris-Sud (France)
Bozena Kralikova, Institute of Physics (Czech Republic)
Josef Krasa, Institute of Physics (Czech Republic)
Ladislav Pina, Czech Technical Univ. (Czech Republic)
Jiri Skala, Institute of Physics (Czech Republic)
Gregory J. Tallents, Univ. of Essex (United Kingdom)

Published in SPIE Proceedings Vol. 2767:
Fourth International Workshop on Iodine Lasers and Applications
Karel Rohlena; Jarmila Kodymova; Bozena Kralikova, Editor(s)

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