Nonlocal optical response of metal nanostructures with arbitrary shape

Jeffrey M. McMahon, Stephen K. Gray, George C. Schatz

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Abstract

We present an implementation of Maxwell's equations that incorporates the spatially nonlocal response of materials, an effect necessary to describe the optical properties of structures with features less than 10nm. For the first time it is possible to investigate the nonlocal optical response of structures without spherical or planar shape, and outside of the electrostatic limit. As an illustration, we calculate the optical properties of Au nanowires and show that nonlocal effects are particularly important in structures with apex features, even for arbitrarily large sizes.

Original languageEnglish
Article number097403
JournalPhysical review letters
Volume103
Issue number9
DOIs
Publication statusPublished - Aug 27 2009

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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