Abstract
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 language | English |
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Article number | 1663 |
Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Nanomaterials |
Volume | 10 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2020 Sept |
Keywords
- H-BN defect
- Plasmonic waveguide
- Quantum plasmonics
- Silver nanowire
- Single-photon emitter
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)