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

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 temperatur...

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Main Authors: Kwang-Yong Jeong, Seong Won Lee, Jae-Hyuck Choi, Jae-Pil So, Hong-Gyu Park
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/10/9/1663
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author Kwang-Yong Jeong
Seong Won Lee
Jae-Hyuck Choi
Jae-Pil So
Hong-Gyu Park
author_facet Kwang-Yong Jeong
Seong Won Lee
Jae-Hyuck Choi
Jae-Pil So
Hong-Gyu Park
author_sort Kwang-Yong Jeong
collection DOAJ
description 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.
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spelling doaj.art-9d8575fce63b4771bdb667f4533c70752023-11-20T11:17:44ZengMDPI AGNanomaterials2079-49912020-08-01109166310.3390/nano10091663Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room TemperatureKwang-Yong Jeong0Seong Won Lee1Jae-Hyuck Choi2Jae-Pil So3Hong-Gyu Park4Department of Physics, Korea University, Seoul 02841, KoreaDepartment of Physics, Korea University, Seoul 02841, KoreaDepartment of Physics, Korea University, Seoul 02841, KoreaDepartment of Physics, Korea University, Seoul 02841, KoreaDepartment of Physics, Korea University, Seoul 02841, KoreaEfficient 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.https://www.mdpi.com/2079-4991/10/9/1663single-photon emitterplasmonic waveguidesilver nanowireh-BN defectquantum plasmonics
spellingShingle Kwang-Yong Jeong
Seong Won Lee
Jae-Hyuck Choi
Jae-Pil So
Hong-Gyu Park
Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
Nanomaterials
single-photon emitter
plasmonic waveguide
silver nanowire
h-BN defect
quantum plasmonics
title Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
title_full Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
title_fullStr Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
title_full_unstemmed Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
title_short Integration of Single-Photon Emitters in 2D Materials with Plasmonic Waveguides at Room Temperature
title_sort integration of single photon emitters in 2d materials with plasmonic waveguides at room temperature
topic single-photon emitter
plasmonic waveguide
silver nanowire
h-BN defect
quantum plasmonics
url https://www.mdpi.com/2079-4991/10/9/1663
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