Observation of spectral gain narrowing in a high-order harmonic seeded soft-x-ray amplifier

0347758 - FZÚ 2011 RIV US eng J - Journal Article
Tissandier, F. - Sebban, S. - Ribière, M. - Gautier, J. - Zeitoun, Ph. - Lambert, G. - Barszczak Sardinha, A. - Goddet, J.Ph. - Burgy, F. - Lefrou, T. - Valentin, C. - Rousse, A. - Guilbaud, O. - Klisnick, A. - Nejdl, Jaroslav - Mocek, Tomáš - Maynard, G.
Observation of spectral gain narrowing in a high-order harmonic seeded soft-x-ray amplifier.
Physical Review. A. Roč. 81, č. 6 (2010), 063833/1-063833/4. ISSN 1050-2947
R&D Projects: GA AV ČR IAA100100911
Institutional research plan: CEZ:AV0Z10100523
Keywords : high-order harmonic * soft-x-ray * amplification * OFI * gain narrowing * Ni-like krypton plasma
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.861, year: 2010
http://pra.aps.org/abstract/PRA/v81/i6/e063833

We report an observation of spectral gain narrowing of a high-order harmonic amplified by a soft-x-ray opticalfield- ionized plasma. The temporal coherence and spectral linewidth of both the seeded and unseeded soft-x-ray lasers were experimentally measured using a varying-path-difference interferometer. The results showed that the high-order harmonic is subject to a strong spectral narrowing during its propagation in the plasma amplifier without rebroadening at saturation. This is in good agreement with a radiative transfer calculation including gain narrowing and saturation rebroadening.
Permanent Link: http://hdl.handle.net/11104/0188462