Recent developments in X-UV optics and X-UV diagnostics

P. Zeitoun, P. Balcou, S. Bucourt, F. Delmotte, G. Dovillaire, D. Douillet, J. Dunn, G. Faivre, M. Fajardo, K.A. Goldberg, S. Hubert, J.R. Hunter, M. Idir, S. Jacquemot, S. Kazamias, S. Le Pape, X. Levecq, Ciaran Lewis, R. Marmoret, P. MercereA.S. Morlens, P.P. Naulleau, M.F. Ravet, C. Remond, J.J. Rocca, R.F. Smith, P. Troussel, C. Valentin, L. Vanbostal

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Metrology of XUV beams (X-ray lasers, high-harmonic generation and VUV free-electron lasers) is of crucial importance for the development of applications. We have thus developed several new optical systems enabling us to measure the optical properties of XUV beams. By use of a Michelson interferometer working as a Fourier-transform spectrometer, the line shapes of different X-ray lasers have been measured with a very high accuracy (Deltalambda/lambdasimilar to10(-6)). Achievement of the first XUV wavefront sensor has enabled us to measure the beam quality of laser-pumped as well as discharge-pumped X-ray lasers. A capillary discharge X-ray laser has demonstrated a very good wavefront allowing us to achieve an intensity as high as 3x10(14) W cm(-2) by focusing with a f=5 cm mirror. The sensor accuracy has been measured using a calibrated spherical wave generated by diffraction. The accuracy has been estimated to be as good as lambda/120 at 13 nm. Commercial developments are underway. At Laboratoire d'Optique Appliquee, we are setting up a new beamline based on high-harmonic generation in order to start the femtosecond, coherent XUV optic .
Original languageEnglish
Pages (from-to)983-988
Number of pages6
JournalApplied Physics B - Lasers and Optics
Volume78
Issue number7-8
DOIs
Publication statusPublished - May 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

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