Waveguides, interferometers, and methods of their formation
First Claim
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1. A method of forming a crystalline ceramic comprising casting a layer of metallo-organic ceramic precursor of electro-optic, ferroelectric or piezoelectric material onto a base and performing a localized heating of a portion of said layer with a heated imprinting tool to create a patterned area of crystalline ceramic.
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Abstract
The invention generally is accomplished by a casting of a liquid metallo-organic ceramic precursor solution to form a layer on a substrate. This layer is then heated to a low temperature to create an amorphous layer. Then a selected area is heated to a high temperature by localized heating to create a patterned area of polycrystalline ceramic having electro-optic properties.
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51 Claims
- 1. A method of forming a crystalline ceramic comprising casting a layer of metallo-organic ceramic precursor of electro-optic, ferroelectric or piezoelectric material onto a base and performing a localized heating of a portion of said layer with a heated imprinting tool to create a patterned area of crystalline ceramic.
- 21. A method of forming a crystalline ceramic comprising casting a layer of metallo-organic ceramic precursor of electro-optic, ferroelectric or piezoelectric material onto a base, heating said layer of precursor to decompose said precursor to form an amorphous ceramic layer, partially overcoating the amorphous ceramic layer with a barrier layer thereby forming a diffusion mask and treating in a gaseous atmosphere of reactive lead containing vapor in-diffusion agent to create crystalline ceramic in areas not overcoated with said diffusion mask.
- 39. A method of forming a crystalline ceramic comprising casting a layer of metallo-organic ceramic precursor of electro-optic, ferroelectric or piezoelectric material onto a base, heating said layer to create an amorphous substantially inorganic ceramic, depositing a pattern of areas of indiffusion material, and heating said amorphous layer and indiffusion material to create areas of electro-optic, ferroelectric, or piezoelectric crystalline ceramic in the pattern of said indiffusion materials.
- 45. A method of forming a ceramic comprising casting a layer of metallo-organic ceramic precursor of electro-optic, ferroelectric or piezoelectric material onto a base, heating the precursor layer to form an amorphous layer, and then performing a localized patterned heating of a portion of said amorphous layer to create a patterned area of electro-optic waveguide or ferroelectric ceramic.
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