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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 17 — Aug. 17, 2009
  • pp: 14825–14831

Comparison of iterative angular spectrum and optimal rotation angle methods in designing beam-fanners

Seyyed H. Kazemi, Mir M. Mirsalehi, and Amir R. Attari  »View Author Affiliations

Optics Express, Vol. 17, Issue 17, pp. 14825-14831 (2009)

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We compare the iterative angular spectrum (IAS) and the optimal rotation angle (ORA) methods in designing two-dimensional finite aperture diffractive optical elements (FADOEs) used as beamfanners. The transfer functions of both methods are compared analytically in the spatial frequency domain. We have designed several structures of 1-to-4 and 1-to-6 beamfanners to investigate the differences in the performance of the beamfanners designed by ORA method for near field operation. Using the three-dimensional finite difference time-domain (3-D FDTD) method with perfect matched layer (PML) absorbing boundary condition (ABC), the diffraction efficiency is calculated for each designed FADOE and the corresponding values are compared.

© 2009 OSA

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(050.1220) Diffraction and gratings : Apertures
(050.1970) Diffraction and gratings : Diffractive optics

ToC Category:
Diffraction and Gratings

Original Manuscript: May 4, 2009
Revised Manuscript: July 1, 2009
Manuscript Accepted: July 24, 2009
Published: August 6, 2009

Seyyed H. Kazemi, Mir M. Mirsalehi, and Amir R. Attari, "Comparison of iterative angular spectrum and optimal rotation angle methods in designing beam-fanners," Opt. Express 17, 14825-14831 (2009)

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