CUED Publications database

Intrinsic exciton-state mixing and nonlinear optical properties in transition metal dichalcogenide monolayers

Glazov, MM and Golub, LE and Wang, G and Marie, X and Amand, T and Urbaszek, B (2017) Intrinsic exciton-state mixing and nonlinear optical properties in transition metal dichalcogenide monolayers. Physical Review B, 95. ISSN 2469-9950

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Abstract

© 2017 American Physical Society. Optical properties of transition metal dichalcogenides monolayers are controlled by Wannier-Mott excitons forming a series of 1s,2s,2p,... hydrogen-like states. We develop the theory of the excited excitonic states energy spectrum fine structure. We predict that p- and s-shell excitons are mixed due to the specific D3h point symmetry of the transition metal dichalcogenide monolayers. Hence, both s- and p-shell excitons are active in both single- and two-photon processes, providing an efficient mechanism of second harmonic generation. The corresponding contribution to the nonlinear susceptibility is calculated.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 25 Jul 2017 03:51
Last Modified: 19 Jul 2018 06:45
DOI: