Optical polarization anisotropy and hole states in pyramidal quantum dots
2006 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 89, 251113- p.Article in journal (Refereed) Published
The authors present a polarization-resolved photoluminescence study of single semiconductor quantum dots (QDs) interconnected to quantum wires, measured both in a top geometry, and in a less conventional cleaved-edge geometry. Strong polarization anisotropy is revealed for all observed transitions, and it is deduced that closely spaced QD hole states exhibit nearly pure heavy-or light-hole character. These effects are attributed to the large aspect ratio of the dot shape
Place, publisher, year, edition, pages
2006. Vol. 89, 251113- p.
IdentifiersURN: urn:nbn:se:liu:diva-44036DOI: 10.1063/1.2402241Local ID: 75471OAI: oai:DiVA.org:liu-44036DiVA: diva2:264897