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Nanoparticle optical memory function

B.F. Soares, M.V. Bashevoy, K.F. MacDonald, F. Jonsson and N.I. Zheludev
University of Southampton, UK

Keywords:
nanophotonics, memory, nanoparticles

Abstract:
Light and electron-beam induced structural transformations in nanoparticles of polymorphic metals provide a paradigm for achieving resonator-less optical memory functionality with picojoule energy requirements. We demonstrate optical memory function with gallium nanoparticles grown by light-assisted self-assembly at the end face of an optical fiber and show how a nanoparticle can constitute an optical memory bit which can be read and erased by a weak probe beam, and written by a single optical control pulse.

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