Systematic investigation of THz-induced excitonic Rabi splitting

Autor: Teich, M., Wagner, M., Stehr, D., Schneider, H., Helm, M., Khitrova, G., Gibbs, H. M., Klettke, A. C., Chatterjee, S., Kira, M., Koch, S. W.
Rok vydání: 2013
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.89.115311
Popis: Weak near-infrared and strong terahertz excitation are applied to study excitonic Rabi splitting in (GaIn)As/GaAs quantum wells. Pronounced anticrossing behavior of the split peaks is observed for different terahertz intensities and detunings relative to the intraexcitonic heavy-hole 1s-2p-transition. At intermediate to high electric fields the splitting becomes highly asymmetric and exhibits significant broadening. A fully microscopic theory is needed to explain the experimental results. Comparisons with a two-level model reveal the increasing importance of higher excitonic states at elevated excitation levels.
Databáze: arXiv