Fabrication of Er3+active silica direct and inverse opals with high quantum efficiency

C. Armellini; A. Chiappini; A. Chiasera; M. Ferrari; Y. Jestin; E. Moser; G. Nunzi Conti; G. Nunzi Conti; S. Pell; G.C. Righin; G.C. Righin

CLEO/Europe and IQEC 2007 Conference Digest
(Optica Publishing Group, 2007),
paper CK_26

Fabrication of Er³⁺active silica direct and inverse opals with high quantum efficiency

C. Armellini, A. Chiappini, A. Chiasera, M. Ferrari, Y. Jestin, E. Moser, G. Nunzi Conti, S. Pell, and G.C. Righin

The European Conference on Lasers and Electro-Optics 2007

Munich Germany
ISBN: 1-4244-931-4

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C. Armellini, A. Chiappini, A. Chiasera, M. Ferrari, Y. Jestin, E. Moser, G. N. Conti, S. Pell, and G. C. Righin, "Fabrication of Er3+active silica direct and inverse opals with high quantum efficiency," in CLEO/Europe and IQEC 2007 Conference Digest, (Optica Publishing Group, 2007), paper CK_26.

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Abstract

Er³⁺ active 3D photonic crystal in direct and inverse opal configuration were realized, on silica substrate, by sol-gel routes. The optical properties were investigated by means reflectance measurements at different incidence angles. From optical measurements it’s evident that both structures (direct and inverse opals) exhibited a pseudo photonic band gap in the visible range. In fact a reflective visible light could be easily observed by the naked eye due to optical Bragg diffraction from the crystal planes.

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