Publication Date:
2012-02-25
Description:
We study pump requirements to produce femtosecond X-ray laser pulses at saturation from inner-shell transitions in the amplified spontaneous emission regime. Since laser-based betatron radiation is considered as the pumping source, we first study the impact of the driving laser power on its intensity. Then we investigate the amplification behavior of the K- α transition of nitrogen at 3.2 nm (395 eV) from radiative transfer calculations coupled with kinetics modeling of the ion population densities. We show that the saturation regime may be experimentally achieved by using PW-class laser-accelerated electron bunches. Finally, we show that this X-ray laser scheme can be extended to heavier atoms and we calculate pump requirements to reach saturation at 1.5 nm (849 eV) from the K- α transition of neon. Content Type Journal Article Pages 1-8 DOI 10.1007/s00340-012-4912-1 Authors M. Ribière, CEA, DAM, GRAMAT, 46500 Gramat, France S. Sebban, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France S. Jacquemot, LULI, Ecole Polytechnique, CEA, UPMC Université Paris VI, 91128 Palaiseau, France B. G. Chéron, CORIA, UMR, CNRS 6614, Saint Etienne du Rouvray, 76801 France K. Ta Phuoc, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France J. Gautier, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France J. Grunenwald, CEA, DAM, GRAMAT, 46500 Gramat, France P. Ribeiro, CEA, DAM, GRAMAT, 46500 Gramat, France M. Kozlova, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France P. Zeitoun, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France A. Rousse, LOA, ENSTA ParisTech, Ecole Polytechnique, UMR CNRS 7639, Chemin de la Hunière, 91761 Palaiseau, France Journal Applied Physics B: Lasers and Optics Online ISSN 1432-0649 Print ISSN 0946-2171
Print ISSN:
0946-2171
Electronic ISSN:
1432-0649
Topics:
Physics
Permalink