Enhancement of Optical Valley Coherence in Monolayer WS2 using Strain

Prathmesh Deshmukh; Prathmesh Deshmukh; Biswanath Chakraborty; Mandeep Khatoniar; Mandeep Khatoniar; Vinod Menon; Vinod Menon

doi:10.1364/CLEO_SI.2020.SM1Q.3

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2020),
paper SM1Q.3
•https://doi.org/10.1364/CLEO_SI.2020.SM1Q.3

Enhancement of Optical Valley Coherence in Monolayer WS₂ using Strain

Prathmesh Deshmukh, Biswanath Chakraborty, Mandeep Khatoniar, and Vinod Menon

CLEO: Science and Innovations 2020

Washington, DC United States
10–15 May 2020
ISBN: 978-1-943580-76-7

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Transition Metal Dichalcogenides (SM1Q)

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P. Deshmukh, B. Chakraborty, M. Khatoniar, and V. Menon, "Enhancement of Optical Valley Coherence in Monolayer WS2 using Strain," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optica Publishing Group, 2020), paper SM1Q.3.

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Abstract

We demonstrate significant enhancement (> 40%) in valley coherence of localized excitons in monolayer WS₂ via strain engineering. The observed enhancement is attributed to the suppression of inter valley scattering due to strain induced potential.

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