Surface-plasmon-enhanced light scattering from microscopic spheres
Jory, M. J.
Cann, P. S.
Sambles, J. Roy
Perkins, E. A.
University of Exeter; Detection, Dstl, Porton Down, Salisbury
Applied Physics Letters
American Institute of Physics
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.
Copyright © 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 83 (2003) and may be found at http://link.aip.org/link/?APPLAB/83/3006/1
83 (15), pp. 3006-3008