Janulewicz KA, Schnürer M, Tümmler J, Priebe G, Risse E, Nickles PV, Greenberg B, Levin M, Pukhov A, Mandelbaum P, Zigler A. 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.
OPTICS LETTERS 2005;
30:1572-4. [PMID:
16007811 DOI:
10.1364/ol.30.001572]
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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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