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US 2025/0053031 A1Published application
Optical Device
AssigneeNippon Telegraph and Telephone Corporation
InventorHidetaka Nishi
Life of this patent
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Abstract
An optical device includes a slab layer formed on a lower cladding layer, a core formed on the slab layer, a first metal layer, and a second metal layer. The optical device further includes a first adhesion layer and a second adhesion layer formed between the slab layer on both sides of the core and the first metal layer and the second metal layer. The first metal layer and the second metal layer are formed apart from the core.
Claims16
An optical device comprising:
- a slab layer made of an electro-optic material having an electro-optic effect;
- a core formed on the slab layer and made of the same electro-optic material as the slab layer;
- first and second metal layers each formed in contact with both side surfaces of the core;
- and
- an adhesion layer formed between the slab layer on both sides of the core and the first and second metal layers and formed to improve adhesion between the slab layer and the first and second metal layers,
- wherein the electro-optic material is an inorganic material,
- wherein the first and second metal layers are made of a noble metal, and
- wherein the core, the first metal layer, and the second metal layer form a plasmonic optical waveguide.
5 more elements
Dependencies are inferred from the claim text.