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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 4 — Apr. 1, 2000
  • pp: 790–793

Moiré technique for spatial coherence measurements of soft-x-ray lasers

Jun Yang, Dianyuan Fan, Shiji Wang, and Yuan Gu  »View Author Affiliations


JOSA A, Vol. 17, Issue 4, pp. 790-793 (2000)
http://dx.doi.org/10.1364/JOSAA.17.000790


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Abstract

We present a novel moiré diagnostic that allows the time-averaged spatial coherence properties of soft-x-ray lasers to be measured. The technique is an extension of the theoretical work in a recent paper [J. Opt. Soc. Am. A 16, 323 (1999)] and is based on the concept of decompositions of the far-field divergence for partially coherent beams. An appealing feature of the approach is that the spatial coherence width at other planes can be evaluated from the measured one at a given plane on the assumption of shape-invariant beams.

© 2000 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(340.0340) X-ray optics : X-ray optics

History
Original Manuscript: April 20, 1999
Revised Manuscript: December 7, 1999
Manuscript Accepted: September 23, 1999
Published: April 1, 2000

Citation
Jun Yang, Dianyuan Fan, Shiji Wang, and Yuan Gu, "Moiré technique for spatial coherence measurements of soft-x-ray lasers," J. Opt. Soc. Am. A 17, 790-793 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-4-790

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