摘要:
Device (1) for inducing by thermal poling a spatially controlled refractive index gradient inside at least one amorphous inorganic material to be treated (10), said device (1) comprising : o a structured electrode (20) arranged on the surface or in proximity to the surface of the material to be treated (10); said device (1) being characterized in that: • it comprises at least one dielectric material (40); • the structured electrode (20) comprises at least one conductive zone and at least one non-conductive zone and it is confined between the amorphous inorganic material to be treated (10) and the said dielectric material (40).