Published in
Elsevier, Optical Materials, 9(31), p. 1275-1279
DOI: 10.1016/j.optmat.2008.10.026
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Er3+-activated sol-gel silica confined structures for photonic applications
Journal article published in 2009 by
A. Chiappini,
C. Armellini,
A. Chiasera 
,
Y. Jestin,
M. Ferrari ,
E. Moser,
G. Nunzi Conti ,
S. Pelli,
R. Retoux,
G. C. Righini
,
Y. Jestin,
M. Ferrari ,
E. Moser,
G. Nunzi Conti ,
S. Pelli,
R. Retoux,
G. C. Righini
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Abstract
a b s t r a c t Sol–gel processing was used to obtain two different kinds of confined structures for photonic applica-tions: (i) Er 3+ -activated sol–gel silica derived spherical microresonators and (ii) Er 3+ -activated silica inverse opal. Optical and spectroscopic assessment, as well as morphological and structural characteriza-tion of the systems, were performed.