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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 16 — Aug. 15, 2012
  • pp: 3303–3305

Generation of super-length optical needle by focusing hybridly polarized vector beams through a dielectric interface

Kelei Hu, Ziyang Chen, and Jixiong Pu  »View Author Affiliations

Optics Letters, Vol. 37, Issue 16, pp. 3303-3305 (2012)

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A super-length optical needle (14λ) of strong transversally polarized field with homogeneous intensity along the optical axis and subdiffraction beam size (0.9λ) can be generated by focusing a hybridly polarized vector beam through a dielectric interface with an annular high-NA lens. Moreover, it is found that the polarization of the cross section near the focal plane is radial variant. Such a nondiffracting optical needle may have applications in atom-optical experiments, such as with atom trap and atom switches.

© 2012 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(080.3630) Geometric optics : Lenses
(260.5430) Physical optics : Polarization

ToC Category:
Diffraction and Gratings

Original Manuscript: May 17, 2012
Revised Manuscript: June 19, 2012
Manuscript Accepted: June 19, 2012
Published: August 3, 2012

Kelei Hu, Ziyang Chen, and Jixiong Pu, "Generation of super-length optical needle by focusing hybridly polarized vector beams through a dielectric interface," Opt. Lett. 37, 3303-3305 (2012)

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