Electron-energy-loss spectra of plasmonic nanoparticles
Physical review letters, 2009•APS
We investigate electron-energy-loss spectroscopy (EELS) on metallic nanoparticles, through
simulations, and provide a comprehensive comparison between EELS and the photonic
local density of states (LDOS). Most importantly, we show that there is no direct link between
EELS and LDOS maps, and that EELS can even be blind to hot spots in the gap between
coupled nanoparticles. Although intimately related, the two quantities provide
complementary information. This finding is in marked contrast to recently reported results.
simulations, and provide a comprehensive comparison between EELS and the photonic
local density of states (LDOS). Most importantly, we show that there is no direct link between
EELS and LDOS maps, and that EELS can even be blind to hot spots in the gap between
coupled nanoparticles. Although intimately related, the two quantities provide
complementary information. This finding is in marked contrast to recently reported results.
We investigate electron-energy-loss spectroscopy (EELS) on metallic nanoparticles, through simulations, and provide a comprehensive comparison between EELS and the photonic local density of states (LDOS). Most importantly, we show that there is no direct link between EELS and LDOS maps, and that EELS can even be blind to hot spots in the gap between coupled nanoparticles. Although intimately related, the two quantities provide complementary information. This finding is in marked contrast to recently reported results.
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