Multiplexed Single-Photon Source Based on Multiple Quantum Dots Embedded within a Single Nanowire

Photonics-based quantum information technologies require efficient, high emission rate sources of single photons. Position-controlled quantum dots embedded within a broadband nanowire waveguide provide a fully scalable route to fabricating highly efficient single-photon sources. However, emission ra...

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Bibliographic Details
Published in:Nano letters 2020-05, Vol.20 (5), p.3688-3693
Main Authors: LaferrieĢ€re, Patrick, Yeung, Edith, Giner, Lambert, Haffouz, Sofiane, Lapointe, Jean, Aers, Geof C, Poole, Philip J, Williams, Robin L, Dalacu, Dan
Format: Article
Language:English
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Summary:Photonics-based quantum information technologies require efficient, high emission rate sources of single photons. Position-controlled quantum dots embedded within a broadband nanowire waveguide provide a fully scalable route to fabricating highly efficient single-photon sources. However, emission rates for single-photon devices are limited by radiative recombination lifetimes. Here, we demonstrate a multiplexed single-photon source based on a multidot nanowire. Using epitaxially grown nanowires, we incorporate multiple energy-tuned dots, each optimally positioned within the nanowire waveguide, providing single photons with high efficiency. This linear scaling of the single-photon emission rate with number of emitters is demonstrated using a five-dot nanowire with an average multiphoton emission probability of
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.0c00607