Applied Physics B

, Volume 96, Issue 1, pp 1–4 | Cite as

Hierarchy in optical near-fields based on compositions of nanomaterials

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Abstract

Optical near-field interactions exhibit hierarchical responses in the nanometer scale allowing unique functions in nanophotonic systems. Such hierarchical properties in optical near-fields originate various physical entities in the nanometer scale. Engineering nanomaterial compositions, while maintaining geometrically equivalent conditions, leads to characteristic hierarchical responses. We experimentally demonstrate such material-dependent optical near-field hierarchy using core–shell-type nanostructures composed of gold and silver.

PACS

62.23.-c 42.79.Ta 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • N. Tate
    • 1
  • W. Nomura
    • 1
  • T. Yatsui
    • 1
  • M. Naruse
    • 1
    • 2
  • M. Ohtsu
    • 1
  1. 1.Department of Electrical Engineering and Information Systems, School of EngineeringThe University of TokyoBunkyo-kuJapan
  2. 2.National Institute of Information and Communications TechnologyKoganeiJapan

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