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Title: Positional control of plasmonic fields and electron emission

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.
Authors:
; ;  [1]
  1. Department of Physics, Portland State University, 1719 SW 10th Avenue, Portland, Oregon 97201 (United States)
Publication Date:
OSTI Identifier:
22303491
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTENNAS; BEAMS; COMPUTERIZED SIMULATION; CONTROL; DISTRIBUTION; ELECTRIC FIELDS; ELECTRON EMISSION; MICROSTRUCTURE; NANOSTRUCTURES; PLASMONS; POLARIZATION; WAVELENGTHS