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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 26 — Dec. 25, 2006
  • pp: 12872–12879

Spatial coherence measurements of a 13.2 nm transient nickel-like cadmium soft X-ray laser pumped at grazing incidence

Y. Liu, Y. Wang, M. A. Larotonda, B. M. Luther, J. J. Rocca, and D. T. Attwood  »View Author Affiliations

Optics Express, Vol. 14, Issue 26, pp. 12872-12879 (2006)

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The spatial coherence of a 13.2 nm transient collisional Ni-like Cd soft X-ray laser pumped at 23 degrees grazing incidence was measured in a series of Young’s double-slit experiments. We observed pronounced fringe visibility variations associated with microstructures in the beam’s intensity profile. The transverse coherence length was measured to be about 1/20 of the beam diameter and did not significantly improve with longer plasma columns. The equivalent incoherent source size is determined to be 10 µm and the laser’s peak spectral brightness ~3×1023 photons/sec/mm2/mrad2 within less than 0.01% spectral bandwidth.

© 2006 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(340.7440) X-ray optics : X-ray imaging

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 29, 2006
Manuscript Accepted: November 5, 2006
Published: December 22, 2006

Y. Liu, Y. Wang, M. A. Larotonda, B. M. Luther, J. J. Rocca, and D. T. Attwood, "Spatial coherence measurements of a 13.2 nm transient nickel-like cadmium soft x-ray laser pumped at grazing incidence," Opt. Express 14, 12872-12879 (2006)

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