Journal
NANO LETTERS
Volume 5, Issue 10, Pages 2104-2107Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl0515652
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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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