Scattered light interference from a single metal nanoparticle and its mirror image.
The spatial distribution of surface plasmon scattering from a single nanoparticle changes dramatically near a metal surface as a result of interference from the direct scattered light and indirect scattered light from the mirror reflection. The unique interference patterns have been reproduced by simulations based on Huygens-Fresnel wave propagation theory. The large spectral width of the surface plasmon scattering enables a vertical distance measurement with 10 nm resolution through this nonintrusive far field interferometry.
Eah
Sang-Kee
SK
Jaeger
Heinrich M
HM
Scherer
Norbert F
NF
Wiederrecht
Gary P
GP
Lin
Xiao-Min
XM