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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 4 — May. 4, 2011

Vector-vortex Bessel–Gauss beams and their tightly focusing properties

Kun Huang, Peng Shi, G. W. Cao, Ke Li, X. B. Zhang, and Y. P. Li  »View Author Affiliations

Optics Letters, Vol. 36, Issue 6, pp. 888-890 (2011)

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We demonstrate that the amplitude of vector-vortex beams has a Bessel–Gauss (BG) distribution through a rigorous vector electromagnetic analysis. We also investigate the intensity profiles in the focal plane of vector-vortex beams that are focused by a high numerical-aperture lens obeying the Helmholtz condition. Although the intensity of a vector-vortex BG beam with a topological charge n = 1 is nonzero along the axis in the focal plane, the beams with n 1 show discrete multiple spots which can be useful for optical trapping.

© 2011 Optical Society of America

OCIS Codes
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(180.0180) Microscopy : Microscopy
(260.5430) Physical optics : Polarization
(260.6042) Physical optics : Singular optics

ToC Category:
Physical Optics

Original Manuscript: September 27, 2010
Revised Manuscript: December 19, 2010
Manuscript Accepted: February 1, 2011
Published: March 9, 2011

Virtual Issues
Vol. 6, Iss. 4 Virtual Journal for Biomedical Optics

Kun Huang, Peng Shi, G. W. Cao, Ke Li, X. B. Zhang, and Y. P. Li, "Vector-vortex Bessel–Gauss beams and their tightly focusing properties," Opt. Lett. 36, 888-890 (2011)

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