Enhancement of a 24.77-nm line emitted by the plasma of a boron nitride capillary discharge irradiated by a high-intensity ultrashort laser pulse |
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Authors: | Janulewicz Karol A Schnürer Matthias Tümmler Johannes Priebe Gerd Risse Enrico Nickles Peter V Greenberg Boris Levin Michael Pukhov Anatoly Mandelbaum Pinchas Zigler Arie |
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Affiliation: | Max Born Institute, Max-Born-Strasse 2A, D-12489 Berlin, Germany. kaj@mbi-berlin.de |
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Abstract: | Investigations of plasma produced by a boron nitride capillary discharge irradiated with a guided 20-TW Ti: sapphire laser pulse at a peak intensity of 4 x 10(18) W/cm2 are presented. The guided laser radiation in the plasma channel generated He-like ions that, subject to suitable plasma temperature, recombined into Li-like nitrogen ions. Intense radiation at a wavelength of 24.77 nm was observed, indicating possible lasing at the 3d(5/2) - 2p(3/2) transition in Li-like nitrogen. |
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