11 March 2013 Tailored spectroscopic and optical properties in rare earth-activated glass-ceramics planar waveguides
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Proceedings Volume 8621, Optical Components and Materials X; 86210M (2013) https://doi.org/10.1117/12.2008192
Event: SPIE OPTO, 2013, San Francisco, California, United States
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. Glass-ceramic waveguides overcome some of the efficiency problems experienced with conventional waveguides. These two-phase materials are composed of nanocrystals embedded in an amorphous matrix. The respective volume fractions of the crystalline and amorphous phases determine the properties of the glass ceramic. They also represent a valid alternative to widely used glass hosts such as silica as an effective optical medium for light propagation and luminescence enhancement. 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.
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Davor Ristic, Davor Ristic, Thi Thanh Van Tran, Thi Thanh Van Tran, Belto Dieudonné, Belto Dieudonné, Armellini Cristina, Armellini Cristina, Simone Berneschi, Simone Berneschi, Andrea Chiappini, Andrea Chiappini, Alessandro Chiasera, Alessandro Chiasera, Stefano Varas, Stefano Varas, Alessandro Carpentiero, Alessandro Carpentiero, Maurizio Mazzola, Maurizio Mazzola, Gualtiero Nunzi Conti, Gualtiero Nunzi Conti, Stefano Pelli, Stefano Pelli, Giorgio Speranza, Giorgio Speranza, Patrice Feron, Patrice Feron, Claire Duverger Arfuso, Claire Duverger Arfuso, Gilles Cibiel, Gilles Cibiel, Sylvia Turrell, Sylvia Turrell, Khiem Tran Ngoc, Khiem Tran Ngoc, Brigitte Boulard, Brigitte Boulard, Giancarlo C. Righini, Giancarlo C. Righini, Maurizio Ferrari, Maurizio Ferrari, "Tailored spectroscopic and optical properties in rare earth-activated glass-ceramics planar waveguides", Proc. SPIE 8621, Optical Components and Materials X, 86210M (11 March 2013); doi: 10.1117/12.2008192; https://doi.org/10.1117/12.2008192

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