Terahertz excitation of a coherent three-level {\Lambda}-type exciton-polariton microcavity mode
Mesoscale and Nanoscale Physics
2011-12-12 v1 Optics
Abstract
Interactions of few-cycle terahertz pulses with the induced optical polarization in a quantum-well microcavity reveal that the lower and higher exciton-polariton modes together with the optically forbidden 2p-exciton state form a unique {\Lambda}-type three-level system. Pronounced nonlinearities are observed via time-resolved strong-terahertz and weak-optical excitation spectroscopy and explained with a fully microscopic theory. The results show that the terahertz pulses strongly couple the exciton-polariton states to the 2p-exciton state while no resonant transition between the two polariton levels is observed.
Keywords
Cite
@article{arxiv.1112.2185,
title = {Terahertz excitation of a coherent three-level {\Lambda}-type exciton-polariton microcavity mode},
author = {Joseph L. Tomaino and Andrew D. Jameson and Yun-Shik Lee and Galina Khitrova and Hyatt M. Gibbs and Andrea C. Klettke and Mackillo Kira and Stephan W. Koch},
journal= {arXiv preprint arXiv:1112.2185},
year = {2011}
}
Comments
4 pages, 4 figures