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Proceedings Paper

Photopumping of a soft x-ray laser by narrow quasicontinuous band radiation
Author(s): Yim T. Lee; Justin K. Nash; Michael Finkenthal
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Paper Abstract

We propose a laser scheme in which the upper levels of a lasing iron are pumped by narrow, quasi-continuous band radiation. In particular, we consider pumping of neon-like chlorine ions by N band radiation of Pb from 41 angstroms to 44 angstroms. We calculate small signal gain coefficients for the n equals 4 - n equals 3 transitions in neon-like chlorine. Both steady-state and time-dependent calculations have shown that the largest gain is found for the 2s22p-11/24f5/2(J equals 2) - 2s22p-11/23d3/2(J equals 1) transition at a wavelength of 264 angstroms, with a value of 5 cm-1. Achieving this value for the gain would require a pump radiation that has a brightness of 0.01 photons/mode, corresponding to an intensity of 1.6 X 1012 Wcm-2.

Paper Details

Date Published: 5 February 1992
PDF: 10 pages
Proc. SPIE 1551, Ultrashort Wavelength Lasers, (5 February 1992); doi: 10.1117/12.134832
Show Author Affiliations
Yim T. Lee, Lawrence Livermore National Lab. (United States)
Justin K. Nash, Lawrence Livermore National Lab. (United States)
Michael Finkenthal, Hebrew Univ. (United States)

Published in SPIE Proceedings Vol. 1551:
Ultrashort Wavelength Lasers
Szymon Suckewer, Editor(s)

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