META 2021, META'12

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Nanooptical study of plasmonic antennas with fast electrons
Zackaria Mahfoud, Odile Stéphan, Anne-Laure Baudrion, Jérôme Plain, Mathieu Kociak

Last modified: 2012-01-18

Abstract


Plasmonic devices such as optical antennas, operating in the visible region of the electromagnetic spectrum are constrained to spatial dimensions of a few nm to hundreds of nm. As most of the physical properties of the plasmons vary on a very short scale, it is necessary to study this 
type of objects at the nanometer scale.
We have performed Electron energy Loss Spectroscopy (EELS) spectral imaging in the IR-vis-UV regime in a Scanning Transmission Electron Microscope (STEM) on several types of coupled and uncoupled nanorods, either lithographed or chemically grown.


Keywords


plasmonics; nanophotonics; STEM; antennas