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US 2026/0280222 A1Published application
Composite substrate and method of producing composite substrate
AssigneeNGK Corporation
InventorsJungo KONDO, Kentaro TANI, Tetsuya EJIRI
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Abstract
A composite substrate includes: a wavelength conversion layer configured to convert incident light into light having a different wavelength; and a multilayer film arranged adjacent to the wavelength conversion layer, wherein the multilayer film is a laminate of a plurality of refractive index layers, and wherein, in one of the plurality of refractive index layers included in the multilayer film, an amorphous region in which an inert gas atom is present is formed in a central portion in a thickness direction.
Claims14
A composite substrate, comprising:
- a wavelength conversion layer configured to convert incident light into light having a different wavelength;
- and
- a multilayer film arranged adjacent to the wavelength conversion layer,
- wherein the multilayer film is a laminate of a plurality of refractive index layers, and
- wherein, in one of the plurality of refractive index layers included in the multilayer film, an amorphous region in which an inert gas atom is present is formed in a central portion in a thickness direction.
2 more elements
A composite substrate, comprising in the following order:
- a surface emitting laser substrate;
- a wavelength conversion layer configured to convert incident light into light having a different wavelength;
- and
- a saturable absorber layer,
- wherein the composite substrate further comprises a multilayer film arranged adjacent to the wavelength conversion layer, in at least one of a space between the surface emitting laser substrate and the wavelength conversion layer or a space between the saturable absorber layer and the wavelength conversion layer,
- wherein the multilayer film is a laminate of a plurality of refractive index layers, and
- wherein, in one of the plurality of refractive index layers included in the multilayer film, an amorphous region in which an inert gas atom is present is formed in a central portion in a thickness direction.
4 more elements
Dependencies are inferred from the claim text.