Abstract

Low-refractive-index microparticles, such as hollow microspheres, have shown great significance in some applications, such as biomedical sensing and targeted drug delivery. However, optical trapping and manipulation of low-refractive-index microparticles are challenging, owing to the repelling force exerted by typical optical traps. In this paper, we demonstrated optical trapping and rotating of large-sized low-refractive-index microparticles by using quasi-perfect optical vortex (quasi-POV) beams, which were generated by Fourier transform of high-order quasi-Bessel beams. Numerical simulation was carried out to characterize the focusing property of the quasi-POV beams. The dynamics of low-refractive-index microparticles in the quasi-POV with various topological charges was investigated in detail. To improve the trapping and rotating performances of the vortex, a point trap was introduced at the center of the ring. Experimental results showed that the quasi-POV was preferable for manipulation of large-sized low-refractive-index microparticles, with its control of the particles’ rotating velocity dependent only on the topological charge due to the unchanged orbital radius.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Trapping of low-index microparticles in an optical vortex

K. T. Gahagan and G. A. Swartzlander
J. Opt. Soc. Am. B 15(2) 524-534 (1998)

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)

Fractional optical vortex beam induced rotation of particles

S. H. Tao, X-C. Yuan, J. Lin, X. Peng, and H. B. Niu
Opt. Express 13(20) 7726-7731 (2005)

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

Supplementary Material (1)

NameDescription
» Visualization 1       Rotating of a hollow glass sphere with diameter of 14 µm by the quasi-POV with topological charge of l = 12 and radial parameter of a = 27.5 mm-1.

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 (8)

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 (3)

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