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Spectral and spatial narrowing of the emission of silicon nanocrystals in a microcavity

par Amans, David ;Callard, Ségolène;Gagnaire, Alain;Joseph, Jacques;Huisken, Friedrich;Ledoux, Gilles
Référence Journal of applied physics, 95, 9, page (5010-5013)
Publication Publié, 2004-05

Article révisé par les pairs

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Résumé :

The fabrication and optical characterization of different silicon nanocrystal layers embedded in various structures, deposited on a fused quartz plate, on top of a half cavity and embedded in a full cavity were discussed. The half and full cavity were respectively, a mirror and a Fabry-Pe′rot resonator, were composed of dielectric distributed Bragg reflectors. The spectral and angular dependencies of the photoluminescence (PL) behavior were also measured. It was observed that the fabrication process does not affect the PL properties of the nanocrystals. The efficient spectral and angular narrowing, observed for the full cavity, leads to a spectral width of 13 nm and an aperture core of 15°.