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Position and Frequency Control of Strain-Induced Quantum Emitters in WSe<sub>2</sub> Monolayers

Cited 35 time in Web of Science Cited 39 time in Scopus
Authors

Kim, Hyoju; Moon, Jong Sung; Noh, Gichang; Lee, Jieun; Kim, Je-Hyung

Issue Date
2019-10
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, Vol.19 No.10, pp.7534-7539
Abstract
Future scalable and integrated quantum photonic systems require deterministic generation and control of multiple quantum emitters. Although various approaches for spatial and spectral control of the quantum emitters have been developed, on-chip control of both position and frequency is still a long-standing goal in solid-state quantum emitters. Here, we demonstrate simultaneous control of position and frequency of the quantum emitters from transition metal dichalcogenide monolayers. Atomically thin two-dimensional materials are inherently sensitive to external strain and offer a new opportunity of creating and controlling the quantum emitters by engineering strain. We fabricate an electrostatically actuated microcantilever with nanopyramid patterns, providing a local strain engineering platform for the WSe2 monolayer. The integrated WSe2 generates high-purity single photon emission at patterned positions with a tuning range up to 3.5 meV. Together with the position and frequency control, we investigate the strain response on the fine-structure splitting and confirm 11% reduction in the fine splitting at the estimated tensile strain of 0.07%.
ISSN
1530-6984
URI
https://hdl.handle.net/10371/203557
DOI
https://doi.org/10.1021/acs.nanolett.9b03421
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Physics and Photonics, 나노 물리와 나노 광자학, 응집 물질 물리

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