Gain scaling of short-wavelength plasma-recombination lasers

Abstract

The theoretical Z^7.5 dependence of the small-signal gain of plasma-recombination lasers on the ionization stage Z of the laser species implies a straightforward development of short-wavelength lasers but appears to be significantly experimentally achieved gain scaling. A new analysis, which incorporates a simple experimental parameter representing the efficiency of populating the upper level at a given plasma electron density, results in a gain scaling with ionization state (Z^4.5) that is more consistent with experiments and also reveals a need for better experimental control of the ion-production and electron–ion-recombination process when one attempts to make such lasers.

© 1983 Optical Society of America

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