Control of randomly scattered surface plasmon polaritons for multiple-input and multiple-output plasmonic switching devices

Wonjun Choi, Yonghyeon Jo, Joonmo Ahn, Eunsung Seo, Q Han Park, Young Min Jhon, Wonshik Choi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Merging multiple microprocessors with high-speed optical networks has been considered a promising strategy for the improvement of overall computation power. However, the loss of the optical communication bandwidth is inevitable when interfacing between optical and electronic components. Here we present an on-chip plasmonic switching device consisting of a two-dimensional (2D) disordered array of nanoholes on a thin metal film that can provide multiple-input and multiple-output channels for transferring information from a photonic to an electronic platform. In this device, the surface plasmon polaritons (SPPs) generated at individual nanoholes become uncorrelated on their way to the detection channel due to random multiple scattering. We exploit this decorrelation effect to use individual nanoholes as independent antennas, and demonstrated that more than 40 far-field incident channels can be delivered simultaneously to the SPP channels, an order of magnitude improvement over conventional 2D patterned devices.

Original languageEnglish
Article number14636
JournalNature Communications
Volume8
DOIs
Publication statusPublished - 2017 Mar 6

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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