US-DOE Basic Science Office, Grant Number DE-FG02-13ER46406
Applied Physics Letters
Plasmonics (Electronics), Electron emission, Energy gaps (Physics), Optical polarization, Antennas (Electronics), Finite difference method
We report the positional control of plasmonic fields and electron emission in a continuous gap antenna structure of sub-micron size. We show experimentally that a nanoscale area of plasmon-enhanced electron emission can be motioned by changing the polarization of an exciting optical beam of 800 nm wavelength. Finite-difference calculations are presented to support the experiments and to show that the plasmon-enhanced electric field distribution of the antenna can be motioned precisely and predictively.
Word R, Fitzgerald J, Könenkamp R. Positional control of plasmonic fields and electron emission. Applied Physics Letters [serial online]. September 15, 2014;105(11):1-4.