Abstract

The perfect optical vortex (POV), the ring size being independent of its topological charge, has found potential applications in optical tweezers and optical communications. In this Letter, we report a new kind of POV, termed as double-ring POV (DR-POV), whose diameters of the two rings are independent of topological charge. We theoretically demonstrate that such a vortex is the Fourier transform of an azimuthally polarized Bessel beam. Experimental results agree well with theoretical prediction. We further investigate the vortex nature of the DR-POV through an interferometric method, showing that the two rings of the vortex have the same topological charge value (magnitude and sign). The specular properties of the DR-POV may find application in optical tweezers, such as trapping and rotating of low-refractive-index particles in the dark region between the two rings.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Perfect vortex beam: Fourier transformation of a Bessel beam

Pravin Vaity and Leslie Rusch
Opt. Lett. 40(4) 597-600 (2015)

How perfect are perfect vortex beams?

Jonathan Pinnell, Valeria Rodríguez-Fajardo, and Andrew Forbes
Opt. Lett. 44(22) 5614-5617 (2019)

Generation of perfect optical vortices using a Bessel–Gaussian beam diffracted by curved fork grating

Mahdi Khodadadi Karahroudi, Bahman Parmoon, Mohammadreza Qasemi, Abolhasan Mobashery, and Hossein Saghafifar
Appl. Opt. 56(21) 5817-5823 (2017)

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 (5)

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 (13)

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