US 11,880,063 B2
Optical element and associated manufacturing method
Damien Pomarede, Limoges (FR); Jean-Louis Auguste, Limoges (FR); Georges Humbert, Rilhac-Rancon (FR); Mathieu Allix, Olivet (FR); Cécile Genevois, Olivet (FR); Emmanuel Veron, Orleans (FR); Sébastien Chenu, Saint-Just-le-Martel (FR); and Gaëlle Delaizir, Toulouse (FR)
Assigned to CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DE LIMOGES, Limoges (FR)
Appl. No. 17/040,297
Filed by CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DE LIMOGES, Limoges (FR)
PCT Filed Mar. 22, 2019, PCT No. PCT/EP2019/057323
§ 371(c)(1), (2) Date Sep. 22, 2020,
PCT Pub. No. WO2019/180246, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 1852502 (FR), filed on Mar. 22, 2018.
Prior Publication US 2021/0088716 A1, Mar. 25, 2021
Int. Cl. G02B 6/02 (2006.01); C03C 13/00 (2006.01); C03C 3/078 (2006.01); C03C 13/04 (2006.01); H01S 3/16 (2006.01); H01S 3/17 (2006.01); C03C 14/00 (2006.01); H01S 3/067 (2006.01); C03C 10/00 (2006.01)
CPC G02B 6/0229 (2013.01) [C03C 3/078 (2013.01); C03C 13/006 (2013.01); C03C 13/046 (2013.01); C03C 14/006 (2013.01); H01S 3/169 (2013.01); H01S 3/176 (2013.01); C03C 10/0009 (2013.01); H01S 3/0672 (2013.01)] 14 Claims
OG exemplary drawing
 
1. 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.