Sulfur capillary discharge irradiated by a picosecond-laser pulse: a new way toward tabletop x-ray laser

Karol A. Janulewicz; Fulvia Bortolotto; P. J. Warwick; Mikhail P. Kalachnikov; Vyacheslav N. Shlyaptsev; Wolfgang Sandner; Jorge J. G. Rocca; Peter Viktor Nickles

doi:10.1117/12.366685

21 October 1999 Sulfur capillary discharge irradiated by a picosecond-laser pulse: a new way toward tabletop x-ray laser

Karol A. Janulewicz, Fulvia Bortolotto, P. J. Warwick, Mikhail P. Kalachnikov, Vyacheslav N. Shlyaptsev, Wolfgang Sandner, Jorge J. G. Rocca, Peter Viktor Nickles

Author Affiliations +

Proceedings Volume 3776, Soft X-Ray Lasers and Applications III; (1999) https://doi.org/10.1117/12.366685
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Results of measurements on a plasma created by a discharge in a sulfur capillary and irradiated by a picosecond laser pulse are presented. Time-resolved transmission measurements and the corresponding XUV spectra are discussed. It is found that the transmission of the laser through the capillary decreases abruptly after the peak of the discharge current, and that the profile of the output laser beam is symmetrized before the onset of the opaque period. The spectra are evidently affected by the laser pulse and show significant intensification on the 3p-3s transition in Ne-like sulfur at 60.84 nm. This observation, combined with the fact that the emission of this line appears spatially displaced from all other lines in the detector and presents a lower divergence, suggest that lasing is occurring.

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Karol A. Janulewicz, Fulvia Bortolotto, P. J. Warwick, Mikhail P. Kalachnikov, Vyacheslav N. Shlyaptsev, Wolfgang Sandner, Jorge J. G. Rocca, and Peter Viktor Nickles "Sulfur capillary discharge irradiated by a picosecond-laser pulse: a new way toward tabletop x-ray laser", Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); https://doi.org/10.1117/12.366685

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