Abstract
Metallic structures with dimensions smaller than the wavelength of light demonstrate fascinating optical properties which depend strongly on the nano-particle size, shape and interparticle spacing. The optical properties are caused by the excitation of localised surface plasmon resonances, which lead to strong enhancement and confinement of the optical field and can be exploited for many applications including Surface-enhanced Raman Spectroscopy (SERS), near-field scanning optical microscopy, and negative refractive index materials.
© 2007 IEEE
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