Spontaneous emission of rare-earth ions confined in planar multilayer dielectric microcavities
Hervé Rigneault, S. Robert, Claude Amra +6 more
We investigate theoretically and experimentally the optical properties of planar Ta2O5/SiO2 multilayer structures implanted with rare earth ions such as erbium and praseodymium. We demonstrate that the spontaneous emission can be strongly enhanced in a direction normal to the layers if the luminescent ions are located in the spacer of a resonant Fabry-Perot type microcavity. Nevertheless, we show that a large amount of light is emitted into the guided modes of the planar stack reducing the optical confinement which is likely to be reached within this type of dielectric microcavities.
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Oct 1, 1997•1 citation