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Spontaneous symmetry breaking and circulation by optically bound microparticle chains in Gaussian beam traps.

Taylor, J.M. and Love, G.D. (2009) 'Spontaneous symmetry breaking and circulation by optically bound microparticle chains in Gaussian beam traps.', Physical review A., 80 (5). 053808.

Abstract

It has been known for some time that simple “optically bound” chains of dielectric microparticles can form in a counter propagating Gaussian beam optical trap. Here we report experimental observations of more complex trapped states, which do not reflect the underlying symmetry of the optical beam trap they are confined in. We discuss both stationary off-axis trapping and dynamic motion. We confirm the results using a rigorous Mie scattering model and also give a physical explanation for these static and dynamic off-axis trapped states.

Item Type:Article
Full text:PDF - Published Version (300Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevA.80.053808
Publisher statement:© 2009 The American Physical Society
Record Created:27 Nov 2012 11:20
Last Modified:27 Nov 2012 12:01

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