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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 27, Iss. 4 — Feb. 15, 2002
  • pp: 228–230

Generation of near-field hexagonal array illumination with a phase grating

Peng Xi, Changhe Zhou, Enwen Dai, and Liren Liu  »View Author Affiliations


Optics Letters, Vol. 27, Issue 4, pp. 228-230 (2002)
http://dx.doi.org/10.1364/OL.27.000228


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Abstract

A hexagonal array not only is a nature-preferred pattern but also is widely used in optoelectronical materials and devices. We report a simple method of hexagonal array illumination based on the Talbot effect that has a theoretical efficiency of 100%. An experimental efficiency of 90.6% with a binary phase (0, π) hexagonal grating is given. This method should be highly interesting for applications of hexagonal array illumination in optical devices as well as in other hexagonal cells.

© 2002 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(230.1360) Optical devices : Beam splitters

Citation
Peng Xi, Changhe Zhou, Enwen Dai, and Liren Liu, "Generation of near-field hexagonal array illumination with a phase grating," Opt. Lett. 27, 228-230 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-4-228

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