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Room temperature Strong coupling in low finesse GaN microcavities

Published online by Cambridge University Press:  01 February 2011

Ian Sellers
Affiliation:, CRHEA-CNRS, Rue Bernard Gregory, V, Valbonne, 06560, France
Fabrice Semond
Affiliation:, France
Mathieu Leroux
Affiliation:, France
Jean Massies
Affiliation:, France
Pierre Disseix
Affiliation:, France
Guillaume Malpuech
Affiliation:, France
A-L. Henneghien
LASMEA, Université Blaise Pascal, Clermont Ferrand II, Les Cézeaux, 63177 Aubière Cedex, France
Joel Leymarie
Affiliation:, France
A Vasson
LASMEA, Université Blaise Pascal, Clermont Ferrand II, Les Cézeaux, 63177 Aubière Cedex, France
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We present experimental results demonstrating strong-light matter coupling at low and room temperature in bulk GaN microcavities. Angle dependent reflectivity measurements demonstrate strong-coupling with a Rabi-energy of 50meV at room temperature which is well reproduced with transfer matrix simulations. The absence of strong coupling in the photoluminescence is attributed to the low finesse of the microcavity (Q=60) and is confirmed by simulations which indicate a quality factor of 90 is required to observe strong-coupling in the emission.

Research Article
Copyright © Materials Research Society 2006

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