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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 16 — Aug. 15, 2006
  • pp: 2387–2389

Design of a circular Dammann grating

Shuai Zhao and Po Sheun Chung  »View Author Affiliations

Optics Letters, Vol. 31, Issue 16, pp. 2387-2389 (2006)

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A novel circular Dammann grating is proposed to generate uniform-intensity impulse rings corresponding to different diffraction orders in the far field. The intensities of the rings are determined by the coefficients of the circular sine series decomposition of the grating function. The definition of diffraction efficiency and uniformity for this novel device are described. Numerical solutions of binary phase circular Dammann gratings are presented. A binary phase three-order circular Dammann grating of π phase depth is fabricated by an e-beam direct writing technique and is experimentally demonstrated.

© 2006 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1950) Diffraction and gratings : Diffraction gratings
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(110.5220) Imaging systems : Photolithography
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Diffraction and Gratings

Original Manuscript: April 18, 2006
Revised Manuscript: May 23, 2006
Manuscript Accepted: May 25, 2006
Published: July 25, 2006

Shuai Zhao and Po Sheun Chung, "Design of a circular Dammann grating," Opt. Lett. 31, 2387-2389 (2006)

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