Condensed Matter Physics Seminar

2 p.m., Thursday, April 20, 2006
Room 1201, Physics Building

 Optical properties of discrete quantum dots in microcavities

Glenn Solomon

(NIST Gaithersburg)

Abstract:  Quantum dots (QDs) of InAs in GaAs are a robust source of single photons. The discrete nature of states in these QDs can be seen through photoluminescence and photon statistics experiments. Because they are formed by conventional epitaxial crystal growth, these QDs can be inserted into a variety of microfabricated optical structures and the light-matter interaction can be studied. I will discuss the interaction of individual QDs with a few types of microcavities. In the weak coupling, spontaneous emission regime, the decay rate of QD excitons can be significantly modified and lead to dramatically improved extraction efficiencies. Such a structure makes an excellent single photon source and can be used in a variety of experiments.
Host:  Anderson
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