Exploding-foil technique for achieving a soft X-ray laser

Details Exploding-foil technique for achieving a soft X-ray laser Exploding-foil technique for achieving a soft X-ray laser

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvl..54..106r&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 54, Jan. 14, 1985, p. 106-109.

Physics

301

Atomic Excitations, Foils (Materials), Laser Materials, Laser Plasma Interactions, Selenium, X Ray Lasers, Decay Rates, Electron Density Profiles, Electron Impact, Laser Outputs, X Ray Spectra

Scientific paper

A design for producing a soft X-ray laser via 3p-3s transitions in Ne-like selenium (wavelength of about 200 A) is described. A 0.53-micron laser, focused in a 1.2 x 0.02-cm spot to 5 x 10 to the 13th W/sq cm, heats and burns through a thin foil of Se. Besides ionizing the Se to a Ne-like state, the laser explodes the foil, creating a region of uniform electron density. This allows propagation of the X-rays down the 1-cm-long gain direction without debilitating refraction. Gains of 4 to 10/cm are predicted for various transitions.

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