King, R.E., Pert, G.J., McCabe, S.P., Simms, P.A., MacPhee, A.G., Lewis, C.L.S., Keenan, R., O’Rourke, R.M.N., Tallents, G.J., Pestehe, S.J., Strati, F., Neely, D. and Allott, R. (2001) Saturated x-ray lasers at 196 and 73 Å pumped by a picosecond traveling-wave excitation. Physical Review A, 64 (5). 053810-12 pages. ISSN 1094-1622
Traveling-wave irradiation with a laser pulse of duration ∼1 picosecond has been shown to achieve saturated operation of Ne- and Ni-like x-ray lasers. Gain at 196 Å was confirmed by observation of both forward and backward x-ray laser beams from a germanium plasma under ideal and nonideal traveling-wave conditions at a small signal gain of >40 cm-1. Saturation was observed for targets >4 mm long consistent with a model of laser amplification along the plasma medium and with the output of a detailed ray-tracing post-processor coupled to a hydrodynamic and atomic physics code. Ni-like samarium targets, pumped under ideal traveling-wave conditions exhibited a small signal gain of ∼19 cm-1 at 73 Å with saturation observed for targets 8 mm long.
|Institution:||The University of York|
|Academic Units:||The University of York > Physics (York)|
|Depositing User:||York RAE Import|
|Date Deposited:||09 Feb 2009 14:30|
|Last Modified:||09 Feb 2009 14:30|
|Publisher:||The American Physical Society.|