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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 20, Iss. 9 — Sep. 1, 2003
  • pp: 1739–1746

Rigorous electromagnetic design of finite-aperture diffractive optical elements by use of an iterative optimization algorithm

Feng Di, Yan Yingbai, Jin Guofan, Tan Qiaofeng, and Haitao Liu  »View Author Affiliations

JOSA A, Vol. 20, Issue 9, pp. 1739-1746 (2003)

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We propose a rigorous electromagnetic design of two-dimensional and finite-aperture diffractive optical elements (DOEs) that employs an effective iterative optimization algorithm in conjunction with a rigorous electromagnetic computational model: the finite-difference time-domain method. The iterative optimization process, the finite-difference time-domain method, and the angular spectrum propagation method are discussed in detail. Without any approximation based on the scalar theory, the algorithm can produce rigorous design results, both numerical and graphical, with fast convergence, reasonable computational cost, and good design quality. Using our iterative algorithm, we designed a diffractive cylindrical lens and a 1-to-2-beam fanner for normal-incidence TE-mode illumination, thus showing that the optimization algorithm is valid and competent for rigorously designing diffractive optical elements. Concerning the problem of fabrication, we also evaluated the performance of the DOE when the DOE profile is discrete.

© 2003 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(050.1970) Diffraction and gratings : Diffractive optics
(230.3990) Optical devices : Micro-optical devices

Original Manuscript: December 20, 2002
Revised Manuscript: March 31, 2003
Manuscript Accepted: March 31, 2003
Published: September 1, 2003

Feng Di, Yan Yingbai, Jin Guofan, Tan Qiaofeng, and Haitao Liu, "Rigorous electromagnetic design of finite-aperture diffractive optical elements by use of an iterative optimization algorithm," J. Opt. Soc. Am. A 20, 1739-1746 (2003)

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