Spectral width of seeded and ASE XUV lasers: Experiment and numerical simulations

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, J. J. Rocca

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationX-Ray Lasers and Coherent X-Ray Sources
Subtitle of host publicationDevelopment and Applications IX
DOIs
StatePublished - 2011
Externally publishedYes
EventX-Ray Lasers and Coherent X-Ray Sources: Development and Applications IX - San Diego, CA, United States
Duration: Aug 23 2011Aug 25 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8140
ISSN (Print)0277-786X

Conference

ConferenceX-Ray Lasers and Coherent X-Ray Sources: Development and Applications IX
Country/TerritoryUnited States
CitySan Diego, CA
Period08/23/1108/25/11

Keywords

  • Collisional XUV lasers
  • Spectral broadening
  • Spectral linewidth
  • Temporal coherence

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