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Optical and structural investigation on the energy transfer in a multicomponent glass co-doped with Si nanoaggregates and Er3+ ions

Published online by Cambridge University Press:  15 March 2011

Francesco Enrichi ,
Giovanni Mattei ,
Cinzia Sada ,
Enrico Trave ,
Domenico Pacifici ,
Giorgia Franzò ,
Francesco Priolo ,
Fabio Iacona ,
Michel Prassas  and
Mauro Falconieri
...Show all authors
Francesco Enrichi
Affiliation:
INFM, Dip. Fisica, Università di Padova, via Marzolo 8, 35131 Padova, Italy
Giovanni Mattei
Affiliation:
INFM, Dip. Fisica, Università di Padova, via Marzolo 8, 35131 Padova, Italy
Cinzia Sada
Affiliation:
INFM, Dip. Fisica, Università di Padova, via Marzolo 8, 35131 Padova, Italy
Enrico Trave
Affiliation:
INFM, Dip. Fisica, Università di Padova, via Marzolo 8, 35131 Padova, Italy
Domenico Pacifici
Affiliation:
INFM-MATIS, Dip. Fisica e Astron., Univ. Catania, via S. Sofia 64, 95123 Catania, Italy
Giorgia Franzò
Affiliation:
INFM-MATIS, Dip. Fisica e Astron., Univ. Catania, via S. Sofia 64, 95123 Catania, Italy
Francesco Priolo
Affiliation:
INFM-MATIS, Dip. Fisica e Astron., Univ. Catania, via S. Sofia 64, 95123 Catania, Italy
Fabio Iacona
Affiliation:
CNR-IMM, Stradale Primosole 50, I-95121 Catania, Italy
Michel Prassas
Affiliation:
Adv. Mat. for Photonics, Corning SA, 7 bis Avenue de Vilvins B.P. No. 3, Avon, France
Mauro Falconieri
Affiliation:
ENEA, via Anguillarese 301, 00060 Casaccia (Roma), Italy
Elisabetta Borsella
Affiliation:
ENEA, via E. Fermi 45, 00044 Frascati (Roma), Italy
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Abstract

The enhancement of the Er3+ ions photoluminescence (PL) emission at 1.54 μm in a Si and Er co-implanted aluminosilicate glass is investigated in details. Post-implantation annealing has been performed to recover the damage induced by the implantation process and to promote Si aggregation. It is shown that 1h treatment in N2 atmosphere is not sufficient to induce Si precipitation for the investigated temperatures, up to 500°C. Nevertheless, the most intense Er3+ PL emission at 1.54 μm is achieved at 400°C. Such emission has been investigated by pumping in and out of resonance. The results suggest that good energy transfer mediators could be small Si aggregates and not only crystalline clusters. The effective excitation cross section of Er3+ ions has been measured in the best performing sample yielding a value of ∼ 2 × 10−16 cm2, many orders of magnitude higher than the direct absorption cross section of Er3+ ions: about 10−21 cm2 in this glass. The structural and optical properties of this material are discussed and compared to those found for a standard silica substrate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 817: Symposium L – New Materials for Microphotonics , 2004 , L1.8
Copyright
Copyright © Materials Research Society 2004

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