Waveguiding without a waveguide: Local-mode exciton polaritons in multiple quantum wells
- 20 February 1995
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 66 (8) , 994-996
- https://doi.org/10.1063/1.113823
Abstract
Exciton polaritons are considered in infinite multiple quantum wells which are periodic except that one well (impurity) has a different well width from the others (host). Under certain circumstances it is possible to have a long‐lived exciton‐polariton mode localized about the impurity. From the viewpoint of the electromagnetic field, this corresponds to waveguide modes in the vicinity of an exciton resonance in such structures.Keywords
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