Integration of single-photon emitters in 2D materials with plasmonic waveguides at room temperature

Kwang Yong Jeong, Seong Won Lee, Jae Hyuck Choi, Jae Pil So, Hong Gyu Park

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Efficient integration of a single-photon emitter with an optical waveguide is essential for quantum integrated circuits. In this study, we integrated a single-photon emitter in a hexagonal boron nitride (h-BN) flake with a Ag plasmonic waveguide and measured its optical properties at room temperature. First, we performed numerical simulations to calculate the efficiency of light coupling from the emitter to the Ag plasmonic waveguide, depending on the position and polarization of the emitter. In the experiment, we placed a Ag nanowire, which acted as the plasmonic waveguide, near the defect of the h-BN, which acted as the single-photon emitter. The position and direction of the nanowire were precisely controlled using a stamping method. Our time-resolved photoluminescence measurement showed that the single-photon emission from the h-BN flake was enhanced to almost twice the intensity as a result of the coupling with the Ag nanowire. We expect these results to pave the way for the practical implementation of on-chip nanoscale quantum plasmonic integrated circuits.

Original languageEnglish
Article number1663
Pages (from-to)1-9
Number of pages9
Issue number9
Publication statusPublished - 2020 Sept

Bibliographical note

Funding Information:
Funding: This work was supported by the Institute for Information & Communications Technology Promotion (IITP) grant (Nos. 2017-0-00575 and 2020-0-00841), the Samsung Research Funding & Incubation Center of Samsung Electronics (SRFC-MA2001-01), and IBS-R023-D1. K.-Y.J. acknowledges support from the NRF of Korea (2018R1D1A1B07043390 and 2020R1I1A1A01066655).

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.


  • H-BN defect
  • Plasmonic waveguide
  • Quantum plasmonics
  • Silver nanowire
  • Single-photon emitter

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science


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