Eur. Phys. J. AP 7, 59-63 (1999)
https://doi.org/10.1051/epjap:1999199

Microcavity effect on dye impregnated porous silicon samples

¹ Laboratoire de Spectrométrie Physique, Université J. Fourier (UMR 5588 du CNRS), B.P. 87, 38402 St Martin d'Hères Cedex, France
² Consorzio PROMEA-INFM Sezione di Cagliari, presso Dipartimento di Fisica, Citt. Universitaria, Strada Prov. le Monserrato-Sestu Km 0.700, 09042 Monserrato (CA), Italy

Corresponding author: Susanna.Setzu@ujf-grenoble.fr

Received: 22 December 1998
Revised: 19 April 1999
Accepted: 19 April 1999
Published online: 15 July 1999

Abstract

The properties of porous silicon microcavities impregnated with a laser dye are investigated by photoluminescence and reflection measurements. The spontaneous emission spectrum of the optically excited rhodamine 800 is drastically modified by microcavity effects: the peak emission intensity is increased, the linewidth is narrowed. These results demonstrate that using all porous silicon or dye-filled microcavities provides new possibilities to improve the properties of photonic devices.