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APT drives breakthrough in optical fiber

Monday, January 20, 2020

Using atom probe tomography, physicists have demonstrated the change in composition of nanoparticles as they grow in an optical fiber doped with rare earth ions.

Optical fibers containing oxide nanoparticles doped with rare earth ions are of great interest because they would allow the luminescence properties to be tailor-made by adapting the composition of the nanoparticles. A thorough characterization of these amorphous nanoparticles becomes therefore essential if we want to control all of the properties of these fibers. For the first time, an international research team led by a researcher from the Nice Institute of Physics (INPHYNI, CNRS / Univ. Côte d'Azur) has unveiled a direct link between the composition of nanoparticles of magnesium silicates (between 2 and 20 nm), formed by phase separation in optical fibers, and their size.

Click here for the full story as published in INPHYNI from the Universite Cote d'Azur.