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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

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 11 — Nov. 1, 2007
  • pp: 3444–3448

High-diffractive-efficiency defocus grating for wavefront curvature sensing

Xi Fengjie, Jiang Zongfu, Xu Xiaojun, and Geng Yifeng  »View Author Affiliations


JOSA A, Vol. 24, Issue 11, pp. 3444-3448 (2007)
http://dx.doi.org/10.1364/JOSAA.24.003444


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Abstract

The optimum phase defocus grating for wavefront curvature sensing is proposed. It features an equidistantly quantized, binary-phase-step defocus grating with a phase-step height of π. The diffractive efficiency of the phase defocus grating is theoretically computed. The optical transfer function is obtained. The optimum phase defocus grating is fabricated. The high diffractive efficiencies of the ± 1 diffraction orders are verified experimentally, the average values of which are 38.08% and 40.36%, respectively.

© 2007 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(050.1380) Diffraction and gratings : Binary optics

ToC Category:
Diffraction and Gratings

History
Original Manuscript: July 6, 2007
Revised Manuscript: August 27, 2007
Manuscript Accepted: August 27, 2007
Published: October 5, 2007

Citation
Xi Fengjie, Jiang Zongfu, Xu Xiaojun, and Geng Yifeng, "High-diffractive-efficiency defocus grating for wavefront curvature sensing," J. Opt. Soc. Am. A 24, 3444-3448 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-11-3444

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