Nanophotonic matching by optical near-fields between shape-engineered nanostructures

Makoto Naruse, Takashi Yatsui, Tadashi Kawazoe, Naoya Tate, Hiroki Sugiyama, Motoichi Ohtsu

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Engineering light-matter near-field interactions on the nanometer scale offers the possibility of devices with unique functions. Here we show that two metal nanostructures can be designed to exhibit far-field radiation only when their shapes are appropriately configured and when they are closely stacked. Such functionality Is useful in ensuring product authentication or certification, where a system should work only when the two nanostructures match, just like a lock and key. We describe its operating principle by observing induced electric currents and their associated optical near-fields, and we show example nanostructures designed by numerical simulations.

Original languageEnglish
Pages (from-to)1121011-1121013
Number of pages3
JournalApplied Physics Express
Issue number11
Publication statusPublished - Nov 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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