Nonlinear Exciton‐Mie Coupling in Transition Metal Dichalcogenide Nanoresonators

verfasst von

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.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

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

Typ

Artikel

Journal

Laser & photonics reviews

Band

16

ISSN

1863-8880

Publikationsdatum

15.06.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie, Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.1002/lpor.202100604 (Zugang: Geschlossen)