{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11988904","patent":{"patent_number":"US-11988904","title":"Slot waveguide for a phase shifter based on ferroelectric materials","assignee":null,"inventors":[],"filing_date":"2021-12-21T00:00:00.000Z","publication_date":"2024-05-21T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":18,"abstract":"The present invention relates to a slot waveguide formed by a vertical material stack comprising a top layer with a first refractive index, a center layer including a ferroelectric material and with a second refractive index, and a Si1-xGex pseudosubstrate layer with 0<x≤1 and with a third refractive index. The center layer is grown on the Si1-xGex pseudosubstrate layer. The second refractive index is lower than the first refractive index and lower than the third refractive index. The slot waveguide can be included in a phase-shifter including two vertically arranged electrodes configured for providing a vertical electrical field (Ev) extending between the top layer and the bottom layer of the slot waveguide and for providing a complementary-metal-oxide-semiconductor compatible driver voltage. The phase-shifter can be configured for providing a linear electro-optical effect inside the center layer of the slot waveguide."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Slot waveguide for a phase shifter based on ferroelectric materials","description":"The present invention relates to a slot waveguide formed by a vertical material stack comprising a top layer with a first refractive index, a center layer including a ferroelectric material and with a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11988904","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11988904","citation_suggestion":"Patentable. \"Slot waveguide for a phase shifter based on ferroelectric materials\" (US-11988904). https://patentable.app/patents/US-11988904","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11988904","json":"https://patentable.app/api/llm-context/US-11988904","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:46:56.800Z"}