Correlation of highly charged ion and X-ray emissions from the laser-produced plasma in the presence of non-linear phenomena |
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| Authors: | L Láska L Ryć J Badziak F P Boody S Gammino K Jungwirth |
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| Institution: | 1. Institute of Physics, ASCR , Na Slovance 2, 182 21, Prague 8, Czech Republic laska@fzu.cz;3. Institute of Plasma Physics and Laser Microfusion , Hery St. 23, 00-908, Warsaw, Poland;4. Ion Light Technologies GmbH , 93077, Bad Abbach, Germany;5. INFN-Laboratori Nazionali del Sud , Via S. Sofia 44, 95123, Catania, Italy;6. University of Messina , Ctr. Papardo-Sperone, Messina, Italy |
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| Abstract: | Flux of X-ray radiation emitted from the Ta plasma, produced by the fundamental (1ω) and the third harmonic (3ω) frequencies of the high-power iodine laser PALS, was studied in dependence on the laser focus position. One or two (three) maxima, corresponding to the hard or soft component of the emitted spectrum, can appear, according to the experimental conditions. These dependencies are compared with those published by other authors, and also with our results concerning the highly charged ion generation. At laser intensities above I L～ 1014 W/cm2, the participation of non-linear processes in the pre-formed plasma was confirmed. |
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| Keywords: | Laser beam interactions Non-linear processes Self-focusing Highly charged ions Soft and hard X-rays |
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