Open AccessNonlinear optics of two‐dimensional transition metal dichalcogenides
Author(s) -
Wen Xinglin,
Gong Zibo,
Li Dehui
Publication year - 2019
Publication title -
infomat
Language(s) - English
Resource type - Journals
ISSN - 2567-3165
DOI - 10.1002/inf2.12024
Subject(s) - nonlinear optics , photonics , nonlinear optical , second harmonic generation , nonlinear system , saturable absorption , optoelectronics , optics , absorption (acoustics) , physics , materials science , quantum mechanics , laser , fiber laser
Nonlinear optics (NLO) of transition metal dichalcogenides (TMDs) is promising for the on‐chip photonic and optoelectronic applications. In this review, we will survey the current progress of NLO in TMDs. First, we will brief the basic theory of the NLO in TMDs. Second, several important nonlinear processes in TMDs such as harmonic generation, four‐wave mixing, saturable absorption, and two‐photon absorption will be presented and their potential applications are also discussed. Third, the main strategies to tune, modulate, and enhance the NLO in TMDs are reviewed, including the excitonic effect, symmetry modulation, optical cavity enhancement, valley selection, edge state, and material phase. Finally, we give an outlook regarding some important issues and directions of NLO in TMDs.