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Proceedings Paper

Lasing in Ne-like S and other new developments in capillary discharge ultrashort wavelength lasers
Author(s): Jorge J. G. Rocca; Fernando G. Tomasel; Mario C. Marconi; Juan L. A. Chilla; Cesar H. Moreno; Brady R. Benware; Vyacheslav N. Shlyaptsev; Juan J. Gonzalez; Christopher D. Macchietto
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Paper Abstract

We report our most recent progress in the development of capillary discharge soft x-ray lasers. This includes the first observation of discharge-pumped ultrashort wavelength lasing in a material that is solid at room temperature (S), and preliminary results of discharges in Ca. Excitation by a capillary discharge of S vapor generated by discharge ablation of a solid target resulted in amplification in Ne-like S at 60.8 nm with a gain-length product of 7.5. Overheating of the electron temperature respect to steady-state ionization conditions and transient population effects significantly increased the gain above the steady state-value. The results of two-dimensional near-field and far-field imaging of a saturated table-top Ne-like Ar laser and the measurement of its spatial coherence as a function of amplifier length are also reported and compared with model calculations. The generation of a capillary discharge plasma waveguide is to be used in combination with ultrashort pulse laser excitation for the generation of a new kind of efficient collisional soft x- ray laser is discussed.

Paper Details

Date Published: 1 November 1997
PDF: 10 pages
Proc. SPIE 3156, Soft X-Ray Lasers and Applications II, (1 November 1997); doi: 10.1117/12.293378
Show Author Affiliations
Jorge J. G. Rocca, Colorado State Univ. (United States)
Fernando G. Tomasel, Colorado State Univ. (Argentina)
Mario C. Marconi, Colorado State Univ. (Argentina)
Juan L. A. Chilla, Colorado State Univ. (United States)
Cesar H. Moreno, Colorado State Univ. (United States)
Brady R. Benware, Colorado State Univ. (United States)
Vyacheslav N. Shlyaptsev, Colorado State Univ. (United States)
Juan J. Gonzalez, Colorado State Univ. (United States)
Christopher D. Macchietto, Colorado State Univ. (United States)

Published in SPIE Proceedings Vol. 3156:
Soft X-Ray Lasers and Applications II
Jorge J. G. Rocca; Luiz Barroca Da Silva, Editor(s)

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