Cathodoluminescence spectroscopy of plasmonic patch antennas: towards lower order and higher energies

Mathieu Jeannin, Névine Rochat, Kuntheak Kheng +1

We report on the cathodoluminescence characterization of Au, Al and a Au/Al bimetal circular plasmonic patch antennas, with disk diameter ranging from 150 to 900 nm. It allows us a…