Article ID Journal Published Year Pages File Type
10632966 Optical Materials 2014 5 Pages PDF
Abstract
The third-order optical nonlinearities of silver doped and/or silver-halide (AgX, X = Cl, Br, I) modified Ge-Ga-S sulfide glasses are studied by the femtosecond Z-scan method. A general agreement with empirical rules is reached: the nonlinear refractive index scales with the optical bandgap or Sellmeier gap of the samples. However, the AgI-modified glass having a larger linear refractive index than that of AgCl-modified one, exhibits a smaller nonlinear refractive index, in contrary to Miller's rule. This has been explained based on the analysis of the structure of the samples.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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