Excitons and carriers in transient absorption and time-resolved ARPES spectroscopy: an abinitio approach

Abstract

I present a fully abinitio scheme to model transient spectroscopy signals in presence of strongly bound excitons. Using LiF as a prototype material, I show that the scheme is able to capture the exciton signature both in time-resolved ARPES and transient absorption experiments. The approach is completely general and can become the reference scheme for modelling pump and probe experiment in a wide range of materials.

6 pages, 5 figures plus supplemental material

References in corpus (11)

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Cited by in corpus (6)

• A theoretical approach for electron dynamics and ultrafast spectroscopy
• Excitonic Bloch equations from first principles
• Linear and Nonlinear Optical Properties of Molecules from Real-Time Propagation Based on the Bethe-Salpeter Equation
• Light-matter interactions in layered materials and heterostructures: from moiré physics and magneto-optical effects to ultrafast dynamics and hybrid meta-photonics
• Optical excitations in nanographenes from the Bethe-Salpeter equation and time-dependent density functional theory: absorption spectra and spatial descriptors
• Electron charge dynamics and charge separation: A response theory approach