Si/SiO2 superlattice based optical planar microcavity

Si/SiO2 Fabry--Perot microcavities with a silicon nanocrystal (Si-nc) active spacer have been realized using a novel process based on a reactive magnetron sputtering of a pure silica target. Spectral, spatial and temporal behaviours of the quantum dots confined inside the resonator are detailed. Com...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2007-07, Vol.88 (2), p.237-240
Main Authors: BELAROUCI, A, GOURBILLEAU, F
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Emission
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Microcavities
Nanocrystals
Optical materials
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Optics
Photoluminescence
Photonic bandgap materials
Physics
Silicon
Silicon dioxide
Spectra
Spectral emissivity
Spontaneous emission
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Summary:Si/SiO2 Fabry--Perot microcavities with a silicon nanocrystal (Si-nc) active spacer have been realized using a novel process based on a reactive magnetron sputtering of a pure silica target. Spectral, spatial and temporal behaviours of the quantum dots confined inside the resonator are detailed. Compared with a reference sample, the spectral and spatial emission distributions are significantly narrowed and the forward emission intensity is enhanced. Time resolved photoluminescence measurements also revealed an increase of the spontaneous emission rate.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-007-2684-9