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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 32 — Nov. 10, 2005
  • pp: 6927–6932

Wave-optical evaluation of interference fringes and wavefront phase in a hard-x-ray beam totally reflected by mirror optics

Kazuto Yamauchi, Kazuya Yamamura, Hidekazu Mimura, Yasuhisa Sano, Akira Saito, Katsuyoshi Endo, Alexei Souvorov, Makina Yabashi, Kenji Tamasaku, Tetsuya Ishikawa, and Yuzo Mori  »View Author Affiliations


Applied Optics, Vol. 44, Issue 32, pp. 6927-6932 (2005)
http://dx.doi.org/10.1364/AO.44.006927


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Abstract

The intensity flatness and wavefront shape in a coherent hard-x-ray beam totally reflected by flat mirrors that have surface bumps modeled by Gaussian functions were investigated by use of a wave-optical simulation code. Simulated results revealed the necessity for peak-to-valley height accuracy of better than 1 nm at a lateral resolution near 0.1 mm to remove high-contrast interference fringes and appreciable wavefront phase errors. Three mirrors that had different surface qualities were tested at the 1 km-long beam line at the SPring-8/Japan Synchrotron Radiation Research Institute. Interference fringes faded when the surface figure was corrected below the subnanometer level to a spatial resolution close to 0.1 mm, as indicated by the simulated results.

© 2005 Optical Society of America

OCIS Codes
(220.4610) Optical design and fabrication : Optical fabrication
(220.4840) Optical design and fabrication : Testing
(220.5450) Optical design and fabrication : Polishing
(340.6720) X-ray optics : Synchrotron radiation
(340.7470) X-ray optics : X-ray mirrors

ToC Category:
X-ray Optics

History
Original Manuscript: October 19, 2004
Revised Manuscript: July 13, 2005
Manuscript Accepted: July 15, 2005
Published: November 10, 2005

Citation
Kazuto Yamauchi, Kazuya Yamamura, Hidekazu Mimura, Yasuhisa Sano, Akira Saito, Katsuyoshi Endo, Alexei Souvorov, Makina Yabashi, Kenji Tamasaku, Tetsuya Ishikawa, and Yuzo Mori, "Wave-optical evaluation of interference fringes and wavefront phase in a hard-x-ray beam totally reflected by mirror optics," Appl. Opt. 44, 6927-6932 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-32-6927

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