Femtosecond-pulse-driven, electron-excited XUV lasers in eight-times-ionized noble gases.
We propose three XUV laser schemes in the 30-50-nm wavelength region that can be driven by 10-Hz ultrashort-pulse terawatt laser systems. Tunneling ionization by circularly polarized radiation produces both the ions and hot electrons necessary to excite the upper laser level.
Lemoff
B E
BE
Barty
C P
CP
Harris
S E
SE