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4 October 2011 Spectral width of seeded and ASE XUV lasers: experiment and numerical simulations
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We describe our recent progress in the investigation of the spectral properties of collisional XUV lasers, including both experimental measurements and numerical calculations. Using a wavefront-division, variable path-difference interferometer, we have characterized the temporal coherence and the spectral width of an injection-seeded transient XUV laser emitted at 18.9 nm from a Ni-like Mo plasma. Our results show that the temporal coherence of the beam is significantly increased by the injection-seeded operation, compared to the standard ASE mode, in agreement with detailed numerical simulations. Using the PPP code we have calculated the intrinsic linewidth of the same lasing line over a range of electron density and at temperatures that are relevant to transient collisional pumping. We discuss the relative contributions of homogeneous and inhomogeneous broadening to the overall profile.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Klisnick, L. M. Meng, D. Alessi, O. Guilbaud, Y. Wang, M. Berrill, B. Luther, A. Calisti, D. Benredjem, S. Ferri, C. Mossé, S. de Rossi, D. Joyeux, and J. J. Rocca "Spectral width of seeded and ASE XUV lasers: experiment and numerical simulations", Proc. SPIE 8140, X-ray Lasers and Coherent X-ray Sources: Development and Applications IX, 814006 (4 October 2011);

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