Photonic and Plasmonic Guided Modes in Graphene-Silicon Photonic Crystals

Tingyi Gu, Andrei Andryieuski, Yufeng Hao, Yilei Li, James Hone, Chee Wei Wong, Andrei Lavrinenko, Tony Low, Tony F. Heinz

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We report the results of systematic studies of plasmonic and photonic guided modes in large-area single-layer graphene integrated into a nanostructured silicon substrate. The interaction of light with graphene and substrate photonic crystals can be classified in distinct regimes depending on the relation of the photonic crystal lattice constant and the relevant modal wavelengths, that is, plasmonic, photonic, and free-space. By optimizing the design of the substrate, these resonant modes can increase the absorption of graphene in the infrared, facilitating enhanced performance of modulators, filters, sensors, and photodetectors utilizing silicon photonic platforms.
Original languageEnglish
JournalA C S Photonics
Issue number11
Pages (from-to)1552-1558
Publication statusPublished - 2015

Bibliographical note

This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.


  • Graphene absorption
  • Graphene plasmonic response
  • Silicon photonics
  • Infrared response
  • Absorption enhancement

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