Excitonic Dynamical Franz-Keldysh Effect

Preprint

23 April 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9804254

Abstract

The Dynamical Franz-Keldysh Effect is exposed by exploring near-bandgap absorption in the presence of intense THz electric fields. It bridges the gap between the DC Franz- Keldysh effect and multi-photon absorption and competes with the THz AC Stark Effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field non-perturbatively via a non-equilibrium Green Functions technique is able to describe the Dynamical Franz-Keldysh Effect in the presence of excitonic absorption.

Keywords

DYNAMICAL FRANZ KELDYSH
FRANZ KELDYSH EFFECT
EXCITONIC DYNAMICAL
KELDYSH EFFECT
ABSORPTION

All Related Versions

Version 1, 1998-04-23, ArXiv
Published version: Physical Review Letters, 81 (2), 457.

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