Exciton/plasmon polaritons in GaAs/Al0.93Ga0.07As heterostructures near a metallic layer

We report on the strong coupling between inorganic quantum well excitons and surface plasmons. For that purpose a corrugated silver film was deposited on the top of a heterostructure consisting of GaAs/GaAlAs quantum wells. The formation of plasmon/heavy-hole exciton/light-hole exciton mixed states...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2008-11, Vol.78 (20)
Main Authors: Bellessa, Joël, Symonds, Clementine, Meynaud, C., Plenet, Jean-Claude, Cambril, E., Miard, Audrey, Ferlazzo, Laurence, Lemaître, Aristide
Format: Article
Language:English
Subjects:
Condensed Matter
Other
Physics
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report on the strong coupling between inorganic quantum well excitons and surface plasmons. For that purpose a corrugated silver film was deposited on the top of a heterostructure consisting of GaAs/GaAlAs quantum wells. The formation of plasmon/heavy-hole exciton/light-hole exciton mixed states is demonstrated with reflectometry experiments. The interaction energies amount to 21 meV for the plasmon/light-hole exciton and 22 meV for the plasmon/heavy-hole exciton. Some particularities of the plasmon-exciton coupling were also discussed and qualitatively related to the plasmon polarization.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.78.205326