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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 17 — Sep. 1, 2000
  • pp: 1288–1290

Efficient method for evaluation of the diffraction efficiency upper bound of diffractive phase elements

Guangya Zhou, Xiaocong Yuan, Philip Dowd, Yee-Loy Lam, and Yuen-Chuen Chan  »View Author Affiliations


Optics Letters, Vol. 25, Issue 17, pp. 1288-1290 (2000)
http://dx.doi.org/10.1364/OL.25.001288


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Abstract

The theoretical diffraction efficiency upper limit of diffractive phase elements (DPE's) with finite apertures is investigated. A successful numerical method of evaluating the efficiency upper bound of DPE's is proposed. The method includes a hybrid optimization procedure that combines a genetic algorithm with the conjugate gradient method. This efficient global optimization technique can also be used to design DPE's. Simulation computations are detailed for rotationally symmetric beam shaping in which a Gaussian profile laser beam is converted into a uniform beam. Numerical results demonstrate that the estimated diffraction efficiency upper bound is consistent with the design results.

© 2000 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(050.1970) Diffraction and gratings : Diffractive optics

Citation
Guangya Zhou, Xiaocong Yuan, Philip Dowd, Yee-Loy Lam, and Yuen-Chuen Chan, "Efficient method for evaluation of the diffraction efficiency upper bound of diffractive phase elements," Opt. Lett. 25, 1288-1290 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-17-1288

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