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Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature

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Title
Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
Author(s)
Kwang-Yong Jeong; Seong Won Lee; Jae-Hyuck Choi; Jae-Pil So; Hong-Gyu Park
Publication Date
2020-09
Journal
Nanomaterials, v.10, no.9, pp.1663
Publisher
MDPI
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.
URI
https://pr.ibs.re.kr/handle/8788114/12102
DOI
10.3390/nano10091663
ISSN
2079-4991
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
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