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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 23 — Dec. 1, 2008
  • pp: 2782–2784

Generation of a radially polarized light beam using space-variant subwavelength gratings at 1064 nm

Gilad M. Lerman and Uriel Levy  »View Author Affiliations

Optics Letters, Vol. 33, Issue 23, pp. 2782-2784 (2008)

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The generation of radially polarized beams at a wavelength of 1064 nm by the use of a polarization transformer device consisting of space-variant subwavelength gratings (SGs) is demonstrated experimentally. The SG generates a π phase retardation between the TE and TM polarizations, acting as a half-wave plate, reflecting the polarization vector with respect to the axes of the plate. The polarization transformer is characterized by polarization analysis and by far-field measurements. The characterization results show good agreement with theory. The device is suitable for operation with Nd:YAG lasers; thus it is attractive for biological, optical tweezers, and material processing applications.

© 2008 Optical Society of America

OCIS Codes
(180.0180) Microscopy : Microscopy
(260.5430) Physical optics : Polarization
(350.5730) Other areas of optics : Resolution

ToC Category:
Physical Optics

Original Manuscript: August 11, 2008
Manuscript Accepted: September 26, 2008
Published: November 20, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Gilad M. Lerman and Uriel Levy, "Generation of a radially polarized light beam using space-variant subwavelength gratings at 1064 nm," Opt. Lett. 33, 2782-2784 (2008)

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