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ZnO nano-pillar Resonators with Coaxial Bragg-Reflectors

Published online by Cambridge University Press:  31 January 2011

Rudiger Schmidt-Grund ,
Annekatrin Hinkel ,
Helena Hilmer ,
Jesus Zúñiga-Pérez ,
Chris Sturm ,
Bernd Rheinländer  and
Marius Grundmann
Rudiger Schmidt-Grund
Affiliation:
Schmidt-Grund@physik.uni-leipzig.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
Annekatrin Hinkel
Affiliation:
ann.hinkel@gmx.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
Helena Hilmer
Affiliation:
h.hilmer@physik.uni-leipzig.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
Jesus Zúñiga-Pérez
Affiliation:
jzp@crhea.cnrs.fr, CRHEA, Valbonne, France
Chris Sturm
Affiliation:
csturm@physik.uni-leipzig.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
Bernd Rheinländer
Affiliation:
rheinlae@physik.uni-leipzig.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
Marius Grundmann
Affiliation:
grundmann@physik.uni-leipzig.de, Universität Leipzig, Institut für Experimentelle Physik II, Leipzig, Germany
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Abstract

We demonstrate the growth of lateral concentric BR on ZnO nano-pillars. It opens the opportunity to be used for (i) the enhancement of the lateral confinement in classical pillar-resonators in order to increase the emission rates in the regime of weak exciton-photon coupling (Purcell-effect), (ii) to enhance the exciton-polariton coupling strength in the strong-coupling regime, and (iii) to be used for two-dimensional confinement in free-standing photonic wire resonators. Spatially resolved PL experiments in dependence on the pillar diameter and on the temperature provide strong hints for the ZnO nano-pillar resonator being in the strong-coupling regime. The coupling strength can be estimated to be V = 80 meV.

Keywords

opticalnanoscalecore/shell
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1178: Symposium AA – Semiconductor Nanowires–Growth, Size-Dependant Properties and Applications , 2009 , 1178-AA10-13
Copyright
Copyright © Materials Research Society 2009

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References

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