Stimulating a broad spectrum of scientific, technological and commercial outcomes from innovative research and unique expertise

YANNICK LEDEMI, PHD

Phone: (418) 656-2131 #14629


Professional background :

  • Postdoctoral fellow, COPL (Group of Prof. Y. Messaddeq), Université Laval, 2010
  • Postdoctoral fellow, Laboratory of Photonic Materials, Araraquara, State University of São Paulo, Brazil, under the supervision of Prof. Y. Messaddeq, 2009-2010
  • Ph.D in Chemistry, conducted jointly at the Laboratoire Verres & Céramiques, UMR6226 Sciences Chimiques de Rennes, Université de Rennes 1, France, and the Photonic Materials Laboratory, Araraquara, State University of  São Paulo, supervisors: Pr. B. Bureau, Pr. M. Poulain et Pr. Y. Messaddeq, 2005-2008 (France-Brazil doctoral scholarship, 2006)
  • Master’s degree in Solid State Chemistry and Materials Research, Université de Rennes 1, France, (Research project conducted at the Laboratory of Photonic Materials, Araraquara, State University of São Paulo, under the supervision of Prof. Y. Messaddeq) , 2003-2005
  • Licence in Chemistry, Université de Rennes 1, France, 2000-2003


Research fields :

  • Synthesis and shaping of exotic and transparent vitroceramics and glasses (chalcogenides, oxyfluorides, heavy metals oxides, phosphates) for applications in optics and photonics;
  • Development of preparation and shaping methods for glasses and high purity preforms for specialty optical fibre fabrication;
  • Materials characterization (DSC, DTA, TMA, XRD, UV / VIS / IR spectroscopy and Raman spectroscopy, solid state NMR, photoluminescence, mechanical characterizations).


Current projects :

  • New glasses and vitroceramics based on fluorophosphates doped with rare earth ions for luminescence and optical amplification;
  • Purification of new colorless chalco-halide glasses for multispectral applications;
  • Development of ionic conductive glass fibres transparent in the visible for electro-optical applications;
  • Gallate glasses for the fabication of new nonlinear optical fibres.

 

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