Transition metal dichalcogenide metaphotonic and self-coupled polaritonic platform grown by chemical vapor deposition

Fuhuan Shen, Zhenghe Zhang, Yaoqiang Zhou, Jingwen Ma, Kun Chen, Huanjun Chen, Shaojun Wang (), Jianbin Xu () and Zefeng Chen ()
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Fuhuan Shen: The Chinese University of Hong Kong, Shatin, N.T.
Zhenghe Zhang: Soochow University
Yaoqiang Zhou: The Chinese University of Hong Kong, Shatin, N.T.
Jingwen Ma: The Chinese University of Hong Kong, Shatin, N.T.
Kun Chen: Sun Yat-sen University
Huanjun Chen: Sun Yat-sen University
Shaojun Wang: Soochow University
Jianbin Xu: The Chinese University of Hong Kong, Shatin, N.T.
Zefeng Chen: The Chinese University of Hong Kong, Shatin, N.T.

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract Transition metal dichalcogenides (TMDCs) have recently attracted growing attention in the fields of dielectric nanophotonics because of their high refractive index and excitonic resonances. Despite the recent realizations of Mie resonances by patterning exfoliated TMDC flakes, it is still challenging to achieve large-scale TMDC-based photonic structures with a controllable thickness. Here, we report a bulk MoS2 metaphotonic platform realized by a chemical vapor deposition (CVD) bottom-up method, supporting both pronounced dielectric optical modes and self-coupled polaritons. Magnetic surface lattice resonances (M-SLRs) and their energy-momentum dispersions are demonstrated in 1D MoS2 gratings. Anticrossing behaviors with Rabi splitting up to 170 meV are observed when the M-SLRs are hybridized with the excitons in multilayer MoS2. In addition, distinct Mie modes and anapole-exciton polaritons are also experimentally demonstrated in 2D MoS2 disk arrays. We believe that the CVD bottom-up method would open up many possibilities to achieve large-scale TMDC-based photonic devices and enrich the toolbox of engineering exciton-photon interactions in TMDCs.

Date: 2022
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DOI: 10.1038/s41467-022-33088-0

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