Journal
APPLIED PHYSICS LETTERS
Volume 81, Issue 1, Pages 171-173Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1491003
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A concept to electrically control the scattering of light is introduced. The idea is to embed noble metal nanoparticles in an electro-optical material such as a liquid crystal in order to induce a spectral shift of the particle plasmon resonance by applying an electric field. Light scattering experiments on single gold nanoparticles show that spherically shaped nanoparticles become optically spheroidal when covered by an anisotropic liquid crystal. The two particle plasmon resonances of the optically spheroidal gold nanoparticles can be spectrally shifted by up to 50 meV when electric fields of more than 10 kV/cm are applied. (C) 2002 American Institute of Physics.
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