Department of Physics
Realization of optical pulling forces using chirality
The optical force acting on a chiral particle is qualitatively different from that acting on an achiral particle due to chirality-dependent forces which couple mechanical linear momentum with optical spin angular momentum. We show that such chirality-induced coupling can serve as a mechanism to realize optical pulling forces that can be predicted analytically and are also observed in full wave simulations for chiral structures.
Physical Review A
American Physical Society
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This work was supported by CRF Grant No. HKUST2/ CRF/11G and AoEGrant No.AOE/P-02/12 from the Research Grants Council of Hong Kong. J.N. was supported by a GRF Grant No. 604011. L.Z. was supported by NSFC Grants No. 60990321 and No. 11174055 and a grant from the Program of Shanghai Subject Chief Scientist (No. 12XD1400700).
Link to Publisher’s Edition
Ding, Kun, Tsz Fai Jack Ng, Lei Zhou, and C. T. Chan. "Realization of optical pulling forces using chirality." Physical Review A 89 (2014): 063825-1-063825-7.