Radiation forces on a Rayleigh dielectric sphere in a patterned optical near field.
We report on the study of the radiation forces exerted on a Rayleigh dielectric particle by a patterned optical near-field landscape at an interface decorated with resonant gold nanostructures. This configuration allows for the generation of a large array of surface subwavelength optical traps from an extended collimated beam, which may be of interest for parallel optical manipulation and sorting of submicrometer objects.
Quidant
Romain
R
ICFO-Institut de Ciències Fotòniques, Jordi Girona, 29, 08034 Barcelona, Spain. romain.quidant@icfo.es
Petrov
Dmitri
D
Badenes
Gonçal
G