Is light absorption by excitons in quantum wells an intrinsic process?

Authors
Hayes, GR Phillips, RT Ciuti, C Staehli, JL Oesterle, U Deveaud, B
Citation
Gr. Hayes et al., Is light absorption by excitons in quantum wells an intrinsic process?, PHYS ST S-A, 178(1), 2000, pp. 79-82
Citations number
3
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
178
Issue
1
Year of publication
2000
Pages
79 - 82
Database
ISI
SICI code
0031-8965(200003)178:1<79:ILABEI>2.0.ZU;2-P
Abstract
A novel method of controlling light absorption by exciton-polaritons is pre sented. The coherent light-induced coupling of excitons in multiple quantum well Bragg structures is exploited to sup press dramatically the absorptio n. Our results show that excitonic light absorption is not an intrinsic pro perty of excitons but rather an extrinsic effect that occurs when the excit ons dephase.