Dedoping of phosphorus and tin via laser-induced nickel sphere migration in glass ceramics

Changes in the local composition of glass, which can locally control the optical properties of glass, are used to form optical waveguide materials, such as optical fibers. The authors have previously demonstrated the technique of metal sphere manipulation inside glass. In this method, the metal sphere moves toward a laser light source, absorbing the light and making the glass soft in the vicinity. In this paper, we report that the nickel sphere migration in glass ceramics dedoped phosphorus and tin from the trajectory of the sphere migration and condensed them in the nickel sphere. At the same time, nickel was doped in the trajectory of nickel sphere migration. The mechanisms of dedoping and incorporation are presented.