Strong light-matter coupling at room temperature in simple geometry GaN microcavities grown on silicon
- Centre de Recherche sur l'Hetero-Epitaxie et ses Applications, Rue Bernard Gregory, 06560 Valbonne (France)
The reflectance spectra of simple design GaN-based microcavities have been studied in the 5 K-300 K range. The epitaxial structure consists of the silicon substrate and the stack of buffer layers as the back mirror, a GaN active layer, and a 100 A thick aluminium layer as the top mirror. Active layer thicknesses of {lambda}/2, {lambda}, or 3{lambda}/2 were investigated. The samples with GaN thicknesses {lambda}/2 and {lambda} display an anticrossing behavior between the cavity and exciton modes, with measured Rabi splittings of 47 and 60 meV, respectively, both at 5 K and room temperature.
- OSTI ID:
- 20702566
- Journal Information:
- Applied Physics Letters, Vol. 87, Issue 2; Other Information: DOI: 10.1063/1.1994954; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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