Nonlinear Exciton‐Mie Coupling in Transition Metal Dichalcogenide Nanoresonators

authored by

Anna A. Popkova, Ilya M. Antropov, Gleb I. Tselikov, Georgy A. Ermolaev, Igor Ozerov, Roman V. Kirtaev, Sergey M. Novikov, Andrey B. Evlyukhin, Aleksey V. Arsenin, Vladimir O. Bessonov, Valentyn S. Volkov, Andrey A. Fedyanin

Abstract

Thanks to a high refractive index, giant optical anisotropy, and pronounced excitonic response, bulk transition metal dichalcogenides (TMDCs) have recently been discovered to be an ideal foundation for post-silicon photonics. The inversion symmetry of bulk TMDCs, on the other hand, prevents their use in nonlinear-optical processes such as second-harmonic generation (SHG). To overcome this obstacle and broaden the application scope of TMDCs, MoS2 nanodisks are engineered to couple Mie resonances with C-excitons. As a result, their alliance produces 23-fold enhancement of SHG intensity with respect to the resonant SHG from a high-quality exfoliated MoS2 monolayer under C-exciton excitation. Furthermore, SHG demonstrates a strongly anisotropic response typical of a MoS2 monolayer due to the single-crystal structure of the fabricated nanodisks, providing a polarization degree of freedom to manipulate SHG. Hence, these results significantly improve the potential of bulk TMDCs enabling an avenue for next-generation nonlinear photonics.

Organisation(s)

Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

Lomonosov Moscow State University
Universite d'Aix-Marseille
GrapheneTek LLC

Type

Article

Journal

Laser & photonics reviews

Volume

16

ISSN

1863-8880

Publication date

15.06.2022

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1002/lpor.202100604 (Access: Closed)