V-P₂O₅ micro-clustering in P-doped silica studied by a first-principles Raman investigation.

ABSTRACT: Synthetic vitreous silica is currently the preferred material for the production of optical fibres because of the several excellent properties of this glass, e.g. high transmission in the visible and IR domains, high mechanical strength, chemical durability, and ease of doping with various materials. For instance, fiber lasers and amplifiers exploit the light amplification properties provided by rare-earth ions employed as dopants in the core of silica-based optical fibers. The structure and composition of the nearest neighbor shell surrounding rare-earth ions in silica-based optical fibers and amplifiers have been intensively debated in the last decade. To reduce aggregation effects between rare-earth ions, co-dopants such as phosphorus and aluminium are added as structural modifiers; pho

SUBMITTER: Giacomazzi L 

PROVIDER: S-EPMC6509213 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature