Sapienza, L., Vasanelli, A., Colombelli, R., Ciuti, C., Chassagneux, Y., Manquest, C., Gennser, U. and Sirtori, C. (2008) Electrically injected cavity polaritons. Physical Review Letters, 100(13), 136806. (doi: 10.1103/PhysRevLett.100.136806) (PMID:18517986)
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Abstract
We have realized an electroluminescent device operating in the light-matter strong-coupling regime based on a GaAs / AlGaAs quantum cascade structure embedded in a planar microcavity. At zero bias, reflectivity measurements show a polariton anticrossing between the intersubband transition and the cavity mode. Under electrical injection the spectral features of the emitted light change drastically, as electrons are resonantly injected in a reduced part of the polariton branches. Our experiments demonstrate that electrons can be selectively injected into polariton states up to room temperature.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Sapienza, Dr Luca |
| Authors: | Sapienza, L., Vasanelli, A., Colombelli, R., Ciuti, C., Chassagneux, Y., Manquest, C., Gennser, U., and Sirtori, C. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| ISSN (Online): | 1079-7114 |
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