Proposal for soft-x-ray and XUV lasers in capillary discharges
Date
1988
Authors
Beethe, D. C., author
Rocca, Jorge J., author
Marconi, M. C., author
Optical Society of America, publisher
Journal Title
Journal ISSN
Volume Title
Abstract
Capillary plasmas with large length-to-diameter ratios (1/d > 100) are proposed as amplification media for soft-x-ray and XUV radiation by direct discharge excitation. The capillary geometry provides a small volume and an adequate resistance for ohmic heating. Heat conduction to the capillary walls provides rapid cooling of the plasma during the decay of the excitation pulse, resulting in a large recombination rate and a population inversion. A time-dependent collisional-radiative model of the capillary plasma predicts gains of the order of 5 cm-1 in the 18.2-nm line of C VI.