Soft x-ray lasing in neonlike germanium and copper plasmas

Journal Article · Mon Sep 14 04:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.59.1185· OSTI ID:6186736

Lee, T N; McLean, E A; Elton, R C

Soft x-ray 3p..-->..3s lasing in neonlike germanium (Ge/sup 22+/) and copper (Cu/sup 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/sup -1/, the higher gain with germanium. The lasing plasmas are produced by focusing a driving laser beam (lambda = 1.05 ..mu..m, 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 to 1 transitions. The measured wavelengths of the six lasing lines compared favorably with recent calculations.

• Research Organization: Laser Plasma Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375-5000
• OSTI ID: 6186736
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:11; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COPPER
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
GERMANIUM
IONIZING RADIATIONS
LASER-PRODUCED PLASMA
LASERS
METALS
P STATES
PLASMA
PLASMA DIAGNOSTICS
RADIATIONS
S STATES
SOFT X RADIATION
TIME DEPENDENCE
TRANSITION ELEMENTS
X RADIATION
X-RAY LASERS