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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 23 — Dec. 1, 2010
  • pp: 3928–3930

Phase encoding for sharper focus of the azimuthally polarized beam

Xiang Hao, Cuifang Kuang, Tingting Wang, and Xu Liu  »View Author Affiliations


Optics Letters, Vol. 35, Issue 23, pp. 3928-3930 (2010)
http://dx.doi.org/10.1364/OL.35.003928


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Abstract

We demonstrate that a sharper focal spot area can be generated ( 0.147 λ 2 ) by using an azimuthally polarized beam propagating through a vortex 0 2 π phase plate than for radial polarization ( 0.17 λ 2 ) or for linear polarization ( 0.26 λ 2 ) under the same condition. Further research illustrates that such optimistic results can still be expected when condition limitations are liberalized. This will facilitate new approaches to get superresolution in confocal systems.

© 2010 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(050.5080) Diffraction and gratings : Phase shift
(100.6640) Image processing : Superresolution
(180.0180) Microscopy : Microscopy
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: July 23, 2010
Revised Manuscript: October 17, 2010
Manuscript Accepted: October 17, 2010
Published: November 22, 2010

Citation
Xiang Hao, Cuifang Kuang, Tingting Wang, and Xu Liu, "Phase encoding for sharper focus of the azimuthally polarized beam," Opt. Lett. 35, 3928-3930 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-23-3928

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