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Title: Non-paraxial beam to push and pull microparticles
Authors: Novitsky, A.V.
Qiu, C.-W. 
Keywords: Bessel beam
optical force
Issue Date: 2011
Citation: Novitsky, A.V., Qiu, C.-W. (2011). Non-paraxial beam to push and pull microparticles. AIP Conference Proceedings 1398 : 162-164. ScholarBank@NUS Repository.
Abstract: We discuss a feasibility of the pulling (backward) force acting on a spherical microparticle in a non-paraxial Bessel beam. The effect can be explained by the strong interaction of particle's multipoles or by the conservation of momentum in the system "photons-particle." It is remarkable that the puling force revealed does not require the beam focusing or high-index ambient medium. The necessary condition of arising of the backward force is the strong non-paraxiality of an electromagnetic beam. We expect this phenomenon will open new horizons in optical micromanipulation. © 2011 American Institute of Physics.
Source Title: AIP Conference Proceedings
ISBN: 9780735409682
ISSN: 0094243X
DOI: 10.1063/1.3644245
Appears in Collections:Staff Publications

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