Photopumping of a soft x-ray laser by narrow quasicontinuous band radiation

Yim T. Lee; Justin K. Nash; Michael Finkenthal

doi:10.1117/12.134832

5 February 1992 Photopumping of a soft x-ray laser by narrow quasicontinuous band radiation

Yim T. Lee, Justin K. Nash, Michael Finkenthal

Proceedings Volume 1551, Ultrashort Wavelength Lasers; (1992) https://doi.org/10.1117/12.134832
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Yim T. Lee, Justin K. Nash, and Michael Finkenthal "Photopumping of a soft x-ray laser by narrow quasicontinuous band radiation", Proc. SPIE 1551, Ultrashort Wavelength Lasers, (5 February 1992); https://doi.org/10.1117/12.134832

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