PETIT , Laeticia

Since the first glass-ceramics developed in the 1950s, there has been growing interest in structuring glass on micro- and nanometric scales. In particular, the presence of heterogeneities in composition and structure has proved particularly fertile for obtaining new optical properties. This article focuses on the case of glasses and optical...

Even though the (75 NaPO3-25 CaF2) (in mol%) glass can be heat-treated into transparent glass-ceramic with Er3+ doped CaF2 crystals precipitating in the volume of the glass during heat-treatment, this glass was found to be a poor glass former, limiting its use as upconverter under 975 nm pumping. In this study, the impact of the glass...

MCVD germanosilica glass embedded with YbPO4 crystals were for the first time drawn into optical fibers. Solution doping was used to embed the crystals in the silica soot prior to the collapsing step. We demonstrate, using scanning/transmission electron microscopes and confocal Raman microscope, that YbPO4 crystals survive not only the MCVD...

Since the invention and further development of lasers in the 1960s, photonics has grown into a field that permeates virtually every aspect of modern life. As photonics deals with the generation, transmission, modulation, amplification, conversion, and detection of light, glasses have played crucial and central roles in a multitude of...