Microscopic theory of the polarizability of transition metal dichalcogenides excitons: Application to WSe2

Abstract

In this paper we develop a fully microscopic theory of the polarizability of excitons in transition metal dichalcogenides. We apply our method to the description of the excitation $2$p dark states. These states are not observable in absorption experiments but can be excited in a pump-probe experiment. As an example we consider $2$p dark states in WSe\textsubscript{2}. We find a good agreement between recent experimental measurements and our theoretical calculations.

arXiv comment10 pages, 4 figures; we welcome comments and requests for adding relevant references to the topic

References in corpus (22)

• Excitons in atomically thin transition metal dichalcogenides
• Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors
• Valley-selective optical Stark effect in monolayer WS2
• Magnetic brightening and control of dark excitons in monolayer WSe2
• Two-dimensional semiconductors in the regime of strong light-matter coupling
• Exciton band structure of monolayer MoS2
• Optical properties of atomically thin transition metal dichalcogenides: Observations and puzzles
• Ultrafast transition between exciton phases in van der Waals heterostructures
• Transition metal dichalcogenide metamaterials with atomic precision
• Electronic polarizability as the fundamental variable in the dielectric properties of two-dimensional materials
• Near-unity light absorption in a monolayer WS2 van der Waals heterostructure cavity
• Intrinsic exciton states mixing and non-linear optical properties in transition metal dichalcogenide monolayers
• Mapping of the dark exciton landscape in transition metal dichalcogenides
• Excitonic effects in the optical properties of 2D materials: An equation of motion approach
• Valley-dependent Exciton Fine Structure and Autler-Townes Doublets from Berry Phases in Monolayer Molybdenum Diselenide
• Absorption of single-layer hexagonal boron nitride in the ultraviolet
• Excitonic Magneto-Optical Kerr Effect in 2D Transition Metal Dichalcogenides Induced by Spin Proximity
• Optical fingerprint of dark 2p-states in transition metal dichalcogenides
• Transient terahertz spectroscopy of excitons and unbound carriers in quasi two-dimensional electron-hole gases
• A colloquium on the variational method applied to excitons in 2D materials
• Excitons in Phosphorene: A Semi-Analytical Perturbative Approach
• Dalgarno-Lewis perturbation theory for nonlinear optics

Cited by in corpus (6)

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• Tunable Excitons in Rhombohedral Trilayer Graphene
• Dynamic polarizability of low-dimensional excitons
• Third-order polarizability of interlayer excitons in hetero-bilayers
• Exciton Binding Energies in 2D Materials: Insights from Braneworld Physics