Surface-plasmon-enhanced light scattering from microscopic spheres

Jory, M. J.; Cann, P. S.; Sambles, J. R.; Perkins, E. A.
October 2003
Applied Physics Letters;10/13/2003, Vol. 83 Issue 15, p3006
Academic Journal
The enhanced light scattering from microscopic latex spheres placed in the optical field associated with a surface-plasmon resonance is explored. Spheres of 200 nm diameter are placed on an optically thin gold film that supports the surface-plasmon and the scattered intensity is then measured as a function of scattering angle. This is compared to the scattering profiles obtained from spheres placed on a bare glass substrate. In both cases, the experimental data are compared to theory. This system is of interest in the field of optical biosensing. © 2003 American Institute of Physics.


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