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Rare earth-activated glass ceramics: A cutting-edge photonic system

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21 Author(s)
Guillaume Alombert Goget ; IFN - CNR, Institute of Photonics & Nanotechnology, CSMFO Lab., Via alla Cascata 56/C Povo, 38123 Trento, Italy ; Claire Arfuso Duverger ; Cristina Armellini ; Simone Berneschi
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Glass ceramic activated by rare earth ions are nanocomposite systems that exhibit specific morphologic, structural and spectroscopic properties allowing to develop interesting new physical concepts, for instance the mechanism related to the transparency, as well as novel photonic devices based on the enhancement of the luminescence. At the state of art the fabrication techniques based on bottom-up and top-down approaches appear to be viable although a specific effort is required to achieve the necessary reliability and reproducibility of the preparation protocols. In particular, the dependence of the final product on the specific parent glass and on the employed synthesis still remain an important task of the research in material science. Looking to application, the enhanced spectroscopic properties typical of glass ceramic in respect to those of the amorphous structures constitute an important point for the development of integrated optics devices, including optical amplifiers, monolithic waveguide laser, novel sensors, coating of spherical microresonators, and up and down converters for solar energy exploitation. This lecture presents a short overview of the state of art in glass ceramics focusing the discussion on photonics application, and evidences the capital scientific and technological interest of this kind of two-phase materials.

Published in:

MIPRO, 2011 Proceedings of the 34th International Convention

Date of Conference:

23-27 May 2011