Silica-based glasses activated by rare earth ion still remain an appealing material for integrated optics. The possibility to develop optically confined structures has opened new possibilities for making novel optical components. Rare earth-activated confined structures at different scales thus offer interesting solutions for this end. Two different point will be discussed: (i) Core-shell sol-gel-derived Er3+-activated dielectric spheres, with potential application as active 3D photonic Crystals, where 1.5 ?m emission features are improved; (ii) dielectric 1-D photonic band gap structures or planar microcavities, where the rare-earth luminescence is enhanced and selected in frequency.
Erbium doped silica based microcavities and microspheres
M Ferrari;S Berneschi;A Chiappini;A Chiasera;G Nunzi Conti;S Pelli;
2008
Abstract
Silica-based glasses activated by rare earth ion still remain an appealing material for integrated optics. The possibility to develop optically confined structures has opened new possibilities for making novel optical components. Rare earth-activated confined structures at different scales thus offer interesting solutions for this end. Two different point will be discussed: (i) Core-shell sol-gel-derived Er3+-activated dielectric spheres, with potential application as active 3D photonic Crystals, where 1.5 ?m emission features are improved; (ii) dielectric 1-D photonic band gap structures or planar microcavities, where the rare-earth luminescence is enhanced and selected in frequency.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
