Taylor, J.M. and Wong, L.Y. and Bain, C.D. and Love, G.D. (2008) 'Emergent properties in optically bound matter.', Optics express., 16 (10). pp. 6921-6929.
Sub-micron particles have been observed to spontaneously form regular two-dimensional structures in counterpropagating evanescent laser fields. We show that collective properties of large numbers of optically-trapped particles can be qualitatively different to the properties of small numbers. This is demonstrated both with a computer model and with experimental results. As the number of particles in the structure is increased, optical binding forces can be sufficiently large to overcome the optical landscape imposed by the interference fringes of the laser beams and impose a different, competing structure.
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|Publisher Web site:||http://dx.doi.org/10.1364/OE.16.006921|
|Publisher statement:||© 2008 The Optical Society. This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.16.006921. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.|
|Record Created:||28 Nov 2012 15:50|
|Last Modified:||29 Nov 2012 16:02|
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