Lasing in Ne-like S and other new developments in capillary discharge ultrashort wavelength lasers

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

doi:10.1117/12.293378

1 November 1997 Lasing in Ne-like S and other new developments in capillary discharge ultrashort wavelength lasers

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

Author Affiliations +

Proceedings Volume 3156, Soft X-Ray Lasers and Applications II; (1997) https://doi.org/10.1117/12.293378
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

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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, and Christopher D. Macchietto "Lasing in Ne-like S and other new developments in capillary discharge ultrashort wavelength lasers", Proc. SPIE 3156, Soft X-Ray Lasers and Applications II, (1 November 1997); https://doi.org/10.1117/12.293378

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