Letters

Optically induced potential energy landscapes

[+] Author Affiliations
Justo Rodriguez, Luciana C. Davila Romero, David L. Andrews

University of East Anglia

J. Nanophoton. 1(1), 019503 (October 22, 2007). doi:10.1117/1.2807196
History: Received July 24, 2007; Revised October 16, 2007; Accepted October 16, 2007; October 22, 2007; November 7, 2007; Online October 22, 2007
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Abstract

Multi-dimensional potential energy surfaces are associated with optical binding. A detailed exploration of the available degrees of geometric freedom reveals unexpected turning points, producing intricate patterns of local force and torque. Although optical pair interactions outweigh Casimir-Polder coupling even over short distances, the forces are not always attractive. Numerous local potential minimum and maximum can be located, and mapped on contour diagrams. Islands of stability appear, and structures conducive to the formation of rings. The results, based on quantum electrodynamics, apply to optically trapped molecules, nanoparticles, microparticles and colloids.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Justo Rodriguez ; Luciana C. Davila Romero and David L. Andrews
"Optically induced potential energy landscapes", J. Nanophoton. 1(1), 019503 (October 22, 2007). ; http://dx.doi.org/10.1117/1.2807196


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