Abstract

Based on the vectorial Debye theory, the tight focusing properties of partially coherent and circularly polarized vortex beams are investigated. The focused characteristics of right-circular and left-circular polarized partially coherent vortex beams in the focal region are presented and compared by some numerical calculation results. Furthermore, the influences of the source coherence and the numerical aperture of the focusing objective on the tight focusing properties are studied in great detail. It is shown that the coherence and polarization properties of the focused left-circular polarized beam is less influenced by the source coherence and the numerical aperture of the focusing objective than that of the focused right-circular polarized beam. By selecting certain parameters, the widely used flat top beam can be obtained.

© 2009 Optical Society of America

Full Article  |  PDF Article
Related Articles
Focusing of partially coherent Bessel-Gaussian beams through a high-numerical-aperture objective

Zhiming Zhang, Jixiong Pu, and Xiqing Wang
Opt. Lett. 33(1) 49-51 (2008)

Tight focusing of elliptically polarized vortex beams

Baosuan Chen and Jixiong Pu
Appl. Opt. 48(7) 1288-1294 (2009)

Spatially engineered polarization states and optical vortices in uniaxial crystals

Tatyana A. Fadeyeva, Vladlen G. Shvedov, Yana V. Izdebskaya, Alexander V. Volyar, Etienne Brasselet, Dragomir N. Neshev, Anton S. Desyatnikov, Wieslaw Krolikowski, and Yuri S. Kivshar
Opt. Express 18(10) 10848-10863 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription