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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 12 — Dec. 1, 2012
  • pp: 120502–120502

Multi-spot focusing by using composite spiral zone plates

Yilei Hua, Ziqiang Wang, Hailiang Li, Nan Gao, and Yuchan Du  »View Author Affiliations

Chinese Optics Letters, Vol. 10, Issue 12, pp. 120502-120502 (2012)

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We present a flexible, simple, and cost effective approach for generating high-quality multiple focal spots in the far field using composite spiral zone plates (SZPs), which serve as a synthesis of two SZPs with different topological charges. By changing the topological charges of the SZPs can obtain different types of multiple focal spots. The numerical solution, fabrication method, and experimental results are presented to prove the capabilities of this approach.

© 2012 Chinese Optics Letters

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(230.3990) Optical devices : Micro-optical devices
(050.1965) Diffraction and gratings : Diffractive lenses

ToC Category:
Diffraction and Gratings

Yilei Hua, Ziqiang Wang, Hailiang Li, Nan Gao, and Yuchan Du, "Multi-spot focusing by using composite spiral zone plates," Chin. Opt. Lett. 10, 120502-120502 (2012)

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