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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 21 — Nov. 1, 2009
  • pp: 3361–3363

Achromatic generation of radially polarized beams in visible range using segmented subwavelength metal wire gratings

Zhehai Zhou, Qiaofeng Tan, Qunqing Li, and Guofan Jin  »View Author Affiliations


Optics Letters, Vol. 34, Issue 21, pp. 3361-3363 (2009)
http://dx.doi.org/10.1364/OL.34.003361


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Abstract

We propose an efficient method to achromatically transform a circularly polarized beam to a radially polarized beam in the visible range using segmented subwavelength metal wire gratings. We present a theoretical analysis of the relationship between the polarization purity of the transmitted beams and the number of segments. To verify our analysis, we fabricate a device composed of four quadrant sectors of subwavelength metal wire gratings and measure the transformation properties of the device at visible wavelengths of 488 nm , 532 nm , and 633 nm , which show a good agreement with theoretical results and the broadband achromatic property of the generation method.

© 2009 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: May 21, 2009
Revised Manuscript: August 28, 2009
Manuscript Accepted: September 21, 2009
Published: October 28, 2009

Citation
Zhehai Zhou, Qiaofeng Tan, Qunqing Li, and Guofan Jin, "Achromatic generation of radially polarized beams in visible range using segmented subwavelength metal wire gratings," Opt. Lett. 34, 3361-3363 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-21-3361


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