Abstract
Resonant photopumping of Be-like Mg ix ions by Li-like Al xi line radiation has been studied in pulsed-power-driven plasmas as a possible approach to achieve laser action in the extreme-ultraviolet wavelength region. An Al x-pinch or z-pinch plasma imploded by a 0.5-TW pulsed power generator produced intense line radiation at 48.338 \AA{}. A separate Mg z-pinch plasma, driven by the same pulsed power generator, was created in parallel with 1 cm separating the two plasmas. Evidence for fluorescence (resonant scattering) was the appearance of 48.340-\AA{} resonance line emission from the 4p level of Mg ix ions due to photopumping by the Al xi line radiation at 48.338 \AA{}. Fluorescence may also have been observed on the Mg viii line at 52.395 \AA{}, photopumped by Al xi line radiation at 52.446 \AA{}. Both Al and Mg plasmas were characterized in the experiments. Improvements to the pump geometry required to achieve gain on the Mg ix line at 228 \AA{} are also discussed.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call