Universal light-guiding geometry for on-chip resonators having extremely high Q-factor

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dc.contributor.authorKim, Dae-Gonko
dc.contributor.authorHan, Sangyoonko
dc.contributor.authorHwang, Joonhyukko
dc.contributor.authorDo, In Hwanko
dc.contributor.authorJeong, Donginko
dc.contributor.authorLim, Ji-Hunko
dc.contributor.authorLee, Yong-Hoonko
dc.contributor.authorChoi, Muhanko
dc.contributor.authorLee, Yong-Heeko
dc.contributor.authorChoi, Duk-Yongko
dc.contributor.authorLee, Hansuekko
dc.date.accessioned2020-12-14T08:10:09Z-
dc.date.available2020-12-14T08:10:09Z-
dc.date.created2020-12-01-
dc.date.created2020-12-01-
dc.date.issued2020-11-
dc.identifier.citationNATURE COMMUNICATIONS, v.11, no.1, pp.5933-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10203/278419-
dc.description.abstractBy providing an effective way to leverage nonlinear phenomena in integrated devices, high-Q optical resonators have led to recent advances in on-chip photonics. However, developing fabrication processes to shape any new material into a resonator with extremely smooth surfaces on a chip has been an exceptionally challenging task. Here, we describe a universal method to implement ultra-high-Q resonators with any new material having desirable properties that can be deposited by physical vapor deposition. Using this method light-guiding cores with surface roughness on the molecular-scale are created automatically on pre-patterned substrates. Its efficacy has been verified using As2S3, a chalcogenide glass that has high-nonlinearity. The Q-factor of the As2S3 resonator so-developed approached the propagation loss record achieved in chalcogenide fibers which were limited by material losses. Owing to the boosted Q-factor, lasing by stimulated Brillouin scattering has been demonstrated with 100 times lower threshold power than the previous record. High-Q resonators are used to enhance nonlinear phenomena in photonics, but developing a fabrication process to shape a new material into a resonator is challenging and costly. Here, the authors present a method using vapour deposition on pre-patterned substrates to fabricate resonators with any new material.-
dc.languageEnglish-
dc.publisherNATURE RESEARCH-
dc.titleUniversal light-guiding geometry for on-chip resonators having extremely high Q-factor-
dc.typeArticle-
dc.identifier.wosid000595871500011-
dc.identifier.scopusid2-s2.0-85096440257-
dc.type.rimsART-
dc.citation.volume11-
dc.citation.issue1-
dc.citation.beginningpage5933-
dc.citation.publicationnameNATURE COMMUNICATIONS-
dc.identifier.doi10.1038/s41467-020-19799-2-
dc.contributor.localauthorLee, Yong-Hee-
dc.contributor.localauthorLee, Hansuek-
dc.contributor.nonIdAuthorLim, Ji-Hun-
dc.contributor.nonIdAuthorLee, Yong-Hoon-
dc.contributor.nonIdAuthorChoi, Muhan-
dc.contributor.nonIdAuthorChoi, Duk-Yong-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorgeometry-
dc.subject.keywordAuthorinstrumentation-
dc.subject.keywordAuthorsurface roughness-
dc.subject.keywordAuthorthreshold-
dc.subject.keywordPlusWAVE-GUIDES-
dc.subject.keywordPlusCHALCOGENIDE-
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