Charge exchange of laser-produced ions in a pulsed gas jet

• Published in: Applied physics. B, Lasers and optics Vol. 89; no. 1; pp. 35 - 38
• Main Authors: Shaikhislamov, I.F., Ponomarenko, A.G., Antonov, V.M., Boyarintsev, E.L., Posukh, V.G., Melekhov, A.V.
• Format: Journal Article
• Language: English
• Published: 01-10-2007
• Subjects: Density; Gain; Lasers; Optical pumping; Plasma (physics); Plasma radiation; Pumping; Spectra
• ISSN: 0946-2171; 1432-0649
• DOI: 10.1007/s00340-007-2766-8

Results of an experiment on the interaction of laser-produced plasma with a pulsed gas jet are reported. A resonant charge-exchange pumping of the n=3 level of the C3+ ion was observed. A spatial structure of the region of intensive interaction was obtained by a short time imaging of filtered plasma radiation. According to independent probe measurements, the interaction was realized at densities of ions and gas particles in excess of 1016 cm-3. The obtained data provide a prospect for future experiments on laser gain in the EUV spectral range based on charge-exchange pumping of the C5+ ion.