Theoretical investigation on asymmetrical spinning and orbiting motions of particles in a tightly focused power-exponent azimuthal-variant vector field

Optics Express
Yingdi ZhangBing Gu

Abstract

We generate a new kind of azimuthal-variant vector field with a distribution of states of polarization (SoPs) described by the square of the azimuthal angle. Owing to asymmetrical SoPs distribution of this localized linearly polarized vector field, the tightly focused field exhibits a double half-moon shaped pattern with the localized elliptical polarization in the cross section of field at the focal plane. Moreover, we study the three-dimensional distributions of spin and orbital linear and angular momenta in the focal region. We numerically investigate the gradient force, radiation force, spin torque, and orbital torque on a dielectric Rayleigh particle produced by the tightly focused vector field. It is found that asymmetrical spinning and orbiting motions of trapped Rayleigh particles can be realized by the use of a tight vector field with power-exponent azimuthal-variant SoPs.

References

Feb 28, 2002·Physical Review Letters·A T O'NeilM J Padgett
Oct 13, 2007·Physical Review Letters·Yiqiong ZhaoDaniel T Chiu
Jul 17, 2000·Optics Express·K Youngworth, T Brown
Jul 1, 2010·Optics Express·Amber M BeckleyMiguel A Alonso
Jul 1, 2010·Optics Express·Xi-Lin WangHui-Tian Wang
Jan 15, 2011·Physical Review Letters·Xi-Lin WangHui-Tian Wang
Apr 27, 2011·Physical Review Letters·Cyril HnatovskyAndrei Rode
Mar 27, 2012·Optics Letters·K LalithambigaiT V S Pillai
May 26, 2012·Optics Letters·Lu HuangZhi-Yuan Li
Jun 8, 2012·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Kelei HuJixiong Pu
Jun 12, 2012·Physical Review Letters·David B Ruffner, David G Grier
Mar 7, 2014·Nature Communications·Konstantin Y BliokhFranco Nori
Aug 15, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Manman LiDan Dan
Feb 28, 2015·Physical Review Letters·Martin NeugebauerPeter Banzer

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