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Title: Reconfiguring photonic metamaterials with currents and magnetic fields

We demonstrate that spatial arrangement and optical properties of metamaterial nanostructures can be controlled dynamically using currents and magnetic fields. Mechanical deformation of metamaterial arrays is driven by both resistive heating of bimorph nanostructures and the Lorentz force that acts on charges moving in a magnetic field. With electrically controlled transmission changes of up to 50% at sub-mW power levels, our approaches offer high contrast solutions for dynamic control of metamaterial functionalities in optoelectronic devices.
Authors:
; ;  [1] ;  [2] ;  [1] ;  [3]
  1. Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ (United Kingdom)
  2. Physical Sciences Department, DSTL, Salisbury SP4 0JQ (United Kingdom)
  3. (Singapore)
Publication Date:
OSTI Identifier:
22395753
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 11; Other Information: (c) 2015 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; 77 NANOSCIENCE AND NANOTECHNOLOGY; DEFORMATION; ELECTRIC CURRENTS; HEATING; LORENTZ FORCE; MAGNETIC FIELDS; METAMATERIALS; NANOSTRUCTURES; OPTICAL PROPERTIES; OPTOELECTRONIC DEVICES