Si/SiO2 superlattice based optical planar microcavity |
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| Authors: | A. Belarouci F. Gourbilleau |
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| Affiliation: | (1) Laboratoire de Structure des Interfaces et Fonctionnalite des Couches Minces (SIFCOM), UMR 6176 CNRS, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France |
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| Abstract: | Si/SiO2 Fabry–Pérot 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. PACS 42.70.Qs; 78.55.-m; 78.66.-w |
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