Observation of Extraordinary SHG from WS2 Monolayers Boosted by Optical Bound States in the Continuum

Nils Bernhardt; Nils Bernhardt; Kirill Koshelev; Kirill Koshelev; Simon White; Kelvin Wong Choon Meng; Kelvin Wong Choon Meng; Johannes E. Fröch; Sejeong Kim; Trong Toan Tran; Duk-Yong Choi; Yuri Kivshar; Yuri Kivshar; Alexander S. Solntsev

doi:10.1364/CLEOPR.2020.C7B_1

14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020)
OSA Technical Digest (Optica Publishing Group, 2020),
paper C7B_1
•https://doi.org/10.1364/CLEOPR.2020.C7B_1

Observation of Extraordinary SHG from WS2 Monolayers Boosted by Optical Bound States in the Continuum

Nils Bernhardt, Kirill Koshelev, Simon White, Kelvin Wong Choon Meng, Johannes E. Fröch, Sejeong Kim, Trong Toan Tran, Duk-Yong Choi, Yuri Kivshar, and Alexander S. Solntsev

Conference on Lasers and Electro-Optics/Pacific Rim 2020

Sydney Australia
3–5 August 2020
ISBN: 978-0-646-82504-5

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Nano-material and 2D Deivces for Nonlinear Photonics (C7B)

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N. Bernhardt, K. Koshelev, S. White, K. W. C. Meng, J. E. Fröch, S. Kim, T. T. Tran, D. Choi, Y. Kivshar, and A. S. Solntsev, "Observation of Extraordinary SHG from WS2 Monolayers Boosted by Optical Bound States in the Continuum," in 14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020), OSA Technical Digest (Optica Publishing Group, 2020), paper C7B_1.

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Abstract

Integrating WS₂ monolayers with resonant silicon metasurfaces hosting optical bound states in the continuum, we observe a strong increase of the second-harmonic intensity by a factor exceeding 1100.

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