{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390865265012166912.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.5109/7323413"}},{"identifier":{"@type":"HDL","@value":"https://hdl.handle.net/2324/7323413"}}],"resourceType":"会議発表資料(conference paper)","dc:title":[{"@language":"en","@value":"Nanopixel Waveguide Polarization Rotator Towards Integrated CRDS Breath Sensor for Self-Lasing Suspension"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"In the context of an aging global population, breath analysis offers a non-invasive method to assess health. One approach uses Cavity Ring-Down Spectroscopy (CRDS), where an optical amplifier compensates for feedback loop loss. However, the self-lasing phenomenon (arising when coherency is secured at a wavelength other than the sensing light) reduces device sensitivity. To mitigate this, a polarization rotator is introduced in the ring cavity, ensuring amplification benefits only the sensing light. As we develop an integrable CRDS system on a Silicon-On-Insulator (SOI) platform, we demonstrate that a 90° polarization rotation is crucial. SOI nanopixel waveguides with two converters and air holes can achieve an 86° to 94° rotation over a 20-nm wavelength range, with insertion loss manageable by the EDFA. A hole diameter of 70 nm offers a balance between reduced loss and efficient mode conversion, though larger holes may enhance mode confinement, particularly for TE10 and TM00 modes."}],"abstractLicenseFlag":"allow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410865265012166914","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Sara Bruhier"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院総合理工学府"},{"@language":"en","@value":"Interdisciplinary Graduate School of Engineering Sciences, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410865265012166912","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"姜 海松"},{"@language":"en","@value":"Jiang Haisong"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院総合理工学研究院"},{"@language":"en","@value":"Interdisciplinary Graduate School of Engineering Sciences, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410865265012166913","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"浜本 貴一"},{"@language":"en","@value":"Hamamoto Kiichi"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院総合理工学研究院"},{"@language":"en","@value":"Interdisciplinary Graduate School of Engineering Sciences, Kyushu University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"24341436"},{"@type":"EISSN","@value":"24341436"}],"prism:publicationName":[{"@language":"en","@value":"Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)"}],"dc:publisher":[{"@language":"en","@value":"Interdisciplinary Graduate School of Engineering Sciences, Kyushu University"},{"@language":"ja","@value":"九州大学大学院総合理工学府"}],"prism:publicationDate":"2024-10-17","prism:volume":"10","prism:startingPage":"1226","prism:endingPage":"1231"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","jpcoar:conferenceName":"International Exchange and Innovation Conference on Engineering & Science(IEICES)","jpcoar:conferencePlace":"九州大学","availableAt":"2024-10-17","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=breath%20sensing","dc:title":"breath sensing"},{"@id":"https://cir.nii.ac.jp/all?q=polarization%20rotator","dc:title":"polarization rotator"},{"@id":"https://cir.nii.ac.jp/all?q=photonics%20integrated%20circuit","dc:title":"photonics integrated circuit"},{"@id":"https://cir.nii.ac.jp/all?q=nanopixel%20waveguide","dc:title":"nanopixel waveguide"}],"dcterms:subject":[{"subjectScheme":"Other","notation":[{"@language":"en","@value":"breath sensing"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"polarization rotator"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"photonics integrated circuit"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"nanopixel waveguide"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2013530751"},{"@type":"IRDB","@value":"oai:irdb.nii.ac.jp:01211:0006496443"},{"@type":"CROSSREF","@value":"10.5109/7323413"}]}