Transmission of laser radiation through microcapillary plasmas

Propagation of laser radiation through a plasma, created in microcapillaries, has been investigated under various experimental conditions, which are closely related to x-ray laser development. It has been shown that the absorption of laser radiation in a microcapillary plasma depends on the microcapillary diameter as well as on the laser parameters and provides a good lead for the process of optimization of the soft-x-ray gain generation. Real-time nonintrusive plasma probing with a low-intensity He–Ne laser beam has also been performed.