Spectroscopic properties of Er 3+-activated Ag exchanged silicate and phosphate glasses

S. N.B. Bhaktha, R. Calzolai, A. Chiappini, A. Chiasera, M. Ferrari, Y. Jestin, M. Mattarelli, M. Montagna, E. Moser, G. Nunzi Conti, S. Pelli, H. Portales, D. N. Rao, G. C. Righini, C. Tosello, K. C. Vishunubhatla, J. Zheng

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Abstract

Spectroscopic properties of Ag/Er co-doped thin plates of silicate and phosphate glass were investigated with the aim of assessing the effective role of silver as a sensitizer for erbium. Additive heat treatments in air at different temperatures were performed on both a silver-exchanged and a silver-free plate in order to promote the formation of silver nanoparticles in the former and to refer to the later in the spectroscopic characterization. Absorption as well as photoluminescence measurements in the region of the 4I 13/24I 13/2 transition of the Er 3+ ion were performed; excitation wavelengths in the range from 360 to 750 nm were used. For the silicate glasses enhancement of the Er 3+ luminescence at 1.53 μm was observed when the excitation wavelength was in the blue region. This spectral range typically coincides with the excitation energy of the surface plasmon resonance of nanometer-sized spherical silver particles.

Lingua originaleInglese
Numero di articolo21
pagine (da-a)139-146
Numero di pagine8
RivistaProceedings of SPIE - The International Society for Optical Engineering
Volume5723
DOI
Stato di pubblicazionePubblicato - 2005
Pubblicato esternamente
EventoOptical Components and Materials II - San Jose, CA, United States
Durata: 24 gen 200525 gen 2005

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