Plasmon scattering from a single gold nanoparticle collected through an optical fiber

Sang-Kee Eah; Jaeger, Heinrich M.; Scherer, Norbert F.; Wiederrecht, Gary P.; Xiao-Min Lin
January 2005
Applied Physics Letters;1/17/2005, Vol. 86 Issue 3, p031902
Academic Journal
A single gold nanoparticle is attached to the end of a chemically etched fiber axicon microlens tip by modifying the tip surface with linker molecules. The high collection efficiency of the fiber axicon microlens allows plasmon scattering of a single nanoparticle to be measured directly through the optical fiber. The portable nature of this probe allows direct optical sensing of environmental changes using a single nanoparticle.


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