Monolayer transition-metal dichalcogenides have recently become a playground for
spintronics and valleytronics research. Their low-energy spectrum can be described by�…

We propose a practical scheme to generate a pure valley current in monolayer transition-
metal dichalcogenides by one-photon absorption of linearly polarized light. We show that�…

The valley degree of freedom in layered transition-metal dichalcogenides provides an
opportunity to extend the functionalities of spintronics and valleytronics devices. The�…

Chiral light-matter interactions can enable polarization to control the direction of light
emission in a photonic device. Most realizations of chiral light-matter interactions require�…

We introduce a physical model to describe the influence of a perpendicular electric field on
circular polarization (CP) and valley polarization (VP) in bilayer transition metal�…

The band structure of many semiconducting monolayer transition metal dichalcogenides
(TMDs) possesses two degenerate valleys with equal and opposite Berry curvature. It has�…

The recent success in optical pumping of valley polarization in two-dimensional transition
metal dichalcogenides (TMDs) has greatly promoted the concept of valley-based informatics�…

This thesis presents optical methods to split the energy levels of electronic valleys in
transition-metal dichalcogenides (TMDs) by means of coherent light-matter interactions. The�…

The polarization analysis of optical transitions in monolayer and bilayer transition-metal
dichalcogenides provides invaluable information on the spin and valley (pseudospin)�…

Doping via electrostatic gating is a powerful and widely used technique to tune the electron
densities in layered materials. The microscopic details of how these doping strategies affect�…