Optical element and associated manufacturing method
AssigneesCentre National De La Recherche Scientifique, Universite De Limoges
InventorsDamien Pomarede, Jean-Louis Auguste, Georges Humbert, Mathieu Allix, Cécile Genevois, Emmanuel Veron, Sébastien Chenu, Gaëlle Delaizir
Life of this patent
Estimating the term…
Abstract
An optical element is provided. The optical element may comprise a material, the material being a matrix and a set of particles included in the matrix, the material having a molar fraction of SiO2 higher than or equal to 65 percent, each particle having a dimension smaller than or equal to 80 nanometers.
Claims14
An optical element made of a first material (M1), the first material (M1) comprising a matrix made of a second material (M2) and a set of particles, the set of particles being made of a third material (M3) and included in the matrix, wherein the first material (M1) has a molar fraction of SiO2 higher than or equal to 75 percent, each particle has a dimension smaller than or equal to 80 nanometers, the first material (M1) is obtained from a precursor comprising a powder comprising SiO2, Na2O, ZnO and Ga2O3, and the first material (M1) comprises at least 90%, by weight, with respect to the total weight of the first material, a composition according to the following formula:
- (SiO2)x(Ga2O3)a(Oxy1)b(Oxy2)c
- where:
- Oxy1 represents an oxide chosen from ZnO, MgO, NbO2.5, WO3, NiO, SnO, TiO2, BiO1.5, AgO, CaO, MnO, or a mixture thereof,
- Oxy2 represents an oxide chosen from Na2O, K2O, or a mixture thereof,
- x is larger than 75 and smaller than 94,
- a is between 5 and 25,
- b is between 1 and 25,
- c is between 0 and 5, and
- x, a, b and c are such that x+a+b+c=100.
Dependencies are inferred from the claim text.