Long-range surface plasmon polariton detection with a graphene photodetector

Ho Seok Ee, You Shin No, Jinhyung Kim, Hong Gyu Park, Min Kyo Seo

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We present an integration of a single Ag nanowire (NW) with a graphene photodetector and demonstrate an efficient and compact detection of long-range surface plasmon polaritons (SPPs). Atomically thin graphene provides an ideal platform to detect the evanescent electric field of SPPs extremely bound at the interface of the Ag NW and glass substrate. Scanning photocurrent microscopy directly visualizes a polarization-dependent excitation and detects the SPPs. The SPP detection responsivity is readily controlled up to ∼17 mA/W by the drain-source voltage. We believe that the graphene SPP detector will be a promising building block for highly integrated photonic and optoelectronic circuits.

Original languageEnglish
Pages (from-to)2889-2892
Number of pages4
JournalOptics Letters
Issue number12
Publication statusPublished - 2018 Jun 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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