Oriented polaritons in strongly-coupled asymmetric double quantum well microcavities
Other Condensed Matter
2015-05-27 v1
Abstract
Replacing independent single quantum wells inside a strongly-coupled semiconductor microcavity with double quantum wells produces a special type of polariton. Using asymmetric double quantum wells in devices processed into mesas allows the alignment of the electron levels to be voltage-tuned. At the resonant electronic tunnelling condition, we demonstrate that `oriented polaritons' are formed, which possess greatly enhanced dipole moments. Since the polariton-polariton scattering rate depends on this dipole moment, such devices could reach polariton lasing, condensation and optical nonlinearities at much lower threshold powers.
Cite
@article{arxiv.1102.2852,
title = {Oriented polaritons in strongly-coupled asymmetric double quantum well microcavities},
author = {Gabriel Christmann and Alexis Askitopoulos and George Deligeorgis and Zacharias Hatzopoulos and Simeon I. Tsintzos and Pavlos G. Savvidis and Jeremy J. Baumberg},
journal= {arXiv preprint arXiv:1102.2852},
year = {2015}
}
Comments
3 figures