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Light-induced switching between structural forms with different optical properties in a single gallium nanoparticulate.

Authors
  • Soares, Bruno F
  • MacDonald, Kevin F
  • Fedotov, Vassili A
  • Zheludev, Nikolay I
Type
Published Article
Journal
Nano letters
Publication Date
Oct 01, 2005
Volume
5
Issue
10
Pages
2104–2107
Identifiers
PMID: 16218746
Source
Medline
License
Unknown

Abstract

In a single gallium nanoparticulate, self-assembled (from an atomic beam) in a nanoaperture at the tip of a tapered optical fiber, we have observed reversible light-induced reflectivity changes associated with a sequence of transformations between a number of structural forms with different optical properties, stimulated by optical excitation at nanowatt power levels. The ability to change the optical properties of a nanoparticulate using structural transformations provides a new mechanism for photonic functionality on the nanoscale.

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