Soft X-ray lasing in neonlike germanium and copper plasmas

Soft X-ray 3p to 3s lasing in neonlike germanium, Ge(22+), and copper, Cu(19+), in the wavelength interval of 195 to 285 A is observed for the first time, with gain coefficients ranging from 1.7 to 4.1/cm, the higher gain with germanium. The lasing plasmas are produced by the focusing of a driving l...

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Bibliographic Details
Published in:	Physical review letters Vol. 59; no. 11; pp. 1185 - 1188
Main Authors:	LEE, T. N, MCLEAN, E. A, ELTON, R. C
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 14-09-1987
Subjects:	Exact sciences and technology Fundamental areas of phenomenology (including applications) Lasers Optics Physics Plasma Germanium Copper Soft X ray X ray laser Laser
Online Access:	Get full text
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Summary:	Soft X-ray 3p to 3s lasing in neonlike germanium, Ge(22+), and copper, Cu(19+), in the wavelength interval of 195 to 285 A is observed for the first time, with gain coefficients ranging from 1.7 to 4.1/cm, the higher gain with germanium. The lasing plasmas are produced by the focusing of a driving laser beam (lambda = 1.05 microns, 2-ns FWHM) into an 18-mm-long line onto thin films and slab targets. The measured J = 0 to 1 gain coefficients are comparable to those of the J = 2-1 transitions. The measured wavelengths of the six lasing lines compare favorably with recent calculations. (Author)
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.59.1185