| Download | - View final version: Bright single InAsP quantum dots at telecom wavelengths in position-controlled InP nanowires: the role of the photonic waveguide (PDF, 752 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1021/acs.nanolett.8b00550 |
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| Author | Search for: Haffouz, Sofiane1; Search for: Zeuner, Katharina D.; Search for: Dalacu, Dan1; Search for: Poole, Philip J.1; Search for: Lapointe, Jean1; Search for: Poitras, Daniel1; Search for: Mnaymneh, Khaled1; Search for: Wu, Xiaohua1; Search for: Couillard, Martin2; Search for: Korkusinski, Marek3; Search for: Schöll, Eva; Search for: Jöns, Klaus D.; Search for: Zwiller, Valery; Search for: Williams, Robin L.3 |
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| Affiliation | - National Research Council of Canada. Advanced Electronics and Photonics
- National Research Council of Canada. Energy, Mining and Environment
- National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | chemical beam epitaxy; epitaxial growth; nanowire; photoluminescence; quantum dot; selective growth; single-photon source; vapor−liquid−solid |
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| Abstract | We report on the site-selected growth of bright single InAsP quantum dots embedded within InP photonic nanowire waveguides emitting at telecom wavelengths. We demonstrate a dramatic dependence of the emission rate on both the emission wavelength and the nanowire diameter. With an appropriately designed waveguide, tailored to the emission wavelength of the dot, an increase in the count rate by nearly 2 orders of magnitude (0.4 to 35 kcps) is obtained for quantum dots emitting in the telecom O-band, showing high single-photon purity with multiphoton emission probabilities down to 2%. Using emission-wavelength-optimized waveguides, we demonstrate bright, narrow-line-width emission from single InAsP quantum dots with an unprecedented tuning range of 880 to 1550 nm. These results pave the way toward efficient single-photon sources at telecom wavelengths using deterministically grown InAsP/InP nanowire quantum dots. |
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| Publication date | 2018-04-04 |
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| Publisher | American Chemical Society |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23003552 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5a9b83d6-9281-4a70-ae8d-7dc607de3ff5 |
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| Record created | 2018-07-18 |
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| Record modified | 2020-05-30 |
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