| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1554954 | Superlattices and Microstructures | 2007 | 5 Pages |
Abstract
We report the external control of the intersubband polariton coupling by manipulating the carrier density in quantum wells resonantly coupled to a GaAs/AlGaAs microcavity. The electrons in the wells were tuned by means of a depletion gate bias or by utilizing charge transfer between the energetically aligned ground subbands of asymmetric tunnel-coupled quantum wells. We propose the use of tunnel-assisted control of the polariton ground state in an asymmetrically coupled quantum well for implementing ultrafast modulation of intersubband polaritons.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Aji A. Anappara, Alessandro Tredicucci, Fabio Beltram, Giorgio Biasiol, Lucia Sorba,