{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11275031","patent":{"patent_number":"US-11275031","title":"Porous waveguide sensors featuring high confinement factors and method for making the same","assignee":null,"inventors":[],"filing_date":"2019-09-05T00:00:00.000Z","publication_date":"2022-03-15T00:00:00.000Z","cpc_codes":["G01N","G01N","B82Y","B82Y","G01N","G01N","G01N","G01N","G01N"],"num_claims":15,"abstract":"Devices and methods of providing a high-performance optical sensor disclose a sensor comprised of a porous material designed to have a multilayer rib-type or multilayer pillar-type waveguide geometry. The resulting porous nanomaterial multilayer-rib or multilayer-pillar waveguide design is optically capable of achieving ˜100% confinement factor while maintaining small mode area and single-mode character. Fabrication of the device is enabled by an inverse processing technique, wherein silicon wafers are first patterned and etched through well-established techniques, which allows porous nanomaterial synthesis (i.e., porous silicon anodization) either at the wafer-scale or at the chip-scale after wafer dicing. While ˜100% is an optimal target, typical devices per presently disclosed subject matter may operate with ˜98-99+%, while allowing for some design adjustments to be made if necessary, and still maintaining high sensitivity. i.e., >85-90% confinement suitable in some applications. In those instances, a primary benefit would still be use of the presently disclosed fabrication technology."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Porous waveguide sensors featuring high confinement factors and method for making the same","description":"Devices and methods of providing a high-performance optical sensor disclose a sensor comprised of a porous material designed to have a multilayer rib-type or multilayer pillar-type waveguide geometry.","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11275031","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-11275031","citation_suggestion":"Patentable. \"Porous waveguide sensors featuring high confinement factors and method for making the same\" (US-11275031). https://patentable.app/patents/US-11275031","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11275031","json":"https://patentable.app/api/llm-context/US-11275031","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:34:35.438Z"}