Lighting up dark plasmon modes with electron beam
ORAL
Abstract
Dark plasmon modes couple weakly with free-space photons. It is, therefore, generally believed that far-field detection of dark plasmon modes is difficult. In this talk, we discuss how an electron beam can light up dark plasmon modes and show theoretically and experimentally that bright and dark modes in a single metal bowtie nanoantenna can be studied at the far field using cathodoluminescence spectroscopy.
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