Phys. Rev. Lett. 38, 1072–1075 (1977)Resonance Charge Transfer and Population Inversion Following C5+ and C6+ Interactions with Carbon Atoms in a Laser-Generated PlasmaReceived 2 March 1977; published in the issue dated 9 May 1977 Enhanced population of the n=4 excited state is measured in both C4+ and C5+ ions in agreement with a theory for formation by resonance charge transfer between carbon ions and atoms. A background gas modifies and mixes the interacting particles originating from a carbon surface vaporized by a focused laser beam. Population inversions capable of producing quasi-cw amplification in the extreme ultraviolet region are measured. © 1977 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.38.1072
DOI:
10.1103/PhysRevLett.38.1072
PACS:
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