Direct Photoionzation Pumping of High Gain VUV, UV and Visible Inversions in Helium, Cadmium and Argon via Two-Electron (Shakeup) and of Sodium via the Output from the LLNL Soft-X-Ray Laser.
01 January 1986
Picosecond two-electron (shakeup) photoionization due to the soft-x-ray flux from a laser-produced plasma has been used to produce 1.3 cm sup (-1) gain in He sup + on the H-like 3 - 2 transition at 164.0 nm, 0.25 cm sup (-1) gain in Cd sup + on the 4d sup 9 5s6s - 4d sup 9 5s5p transition at 205.5 nm and 0.9 cm sup (-1) gain in Ar sup + on the 3p sup 4 4p - 3p sup 4 4s transitions at 427.7 and 476.5 nm.