Skip to Main content Skip to Navigation
Journal articles

Longitudinal coherence measurements of a transient collisional x-ray laser

Abstract : We present what is to our knowledge the first longitudinal coherence measurement of a transient inversion collisional x-ray laser. We investigated the picosecond output of a Ni-like Pd x-ray laser at 14.68 nm generated by the COMET laser facility at the Lawrence Livermore National Laboratory. Interference fringes were generated with a Michelson interferometer setup in which a thin multilayer membrane was used as a beam splitter. We determined the longitudinal coherence for the 4d1S01→4p1P1 lasing transition to be ~400μm (1/e half-width) by changing the length of one interferometer arm and measuring the resultant variation in fringe visibility. The inferred gain-narrowed linewidth of ~0.29pm is a factor of 4 less than previously measured in quasi-steady-state x-ray laser schemes.
Document type :
Journal articles
Complete list of metadata

Cited literature [8 references]  Display  Hide  Download
Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Tuesday, October 15, 2013 - 4:09:44 PM
Last modification on : Saturday, June 25, 2022 - 11:00:57 AM
Long-term archiving on: : Friday, April 7, 2017 - 11:16:37 AM


Publisher files allowed on an open archive




Raymond F. Smith, James Dunn, James R. Hunter, J. Nilsen, Sébastien Hubert, et al.. Longitudinal coherence measurements of a transient collisional x-ray laser. Optics Letters, Optical Society of America - OSA Publishing, 2003, 28 (22), pp.2261-2263. ⟨10.1364/OL.28.002261⟩. ⟨hal-00873446⟩



Record views


Files downloads