{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T19:14:40Z","timestamp":1780514080330,"version":"3.54.1"},"reference-count":61,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2023,12,11]],"date-time":"2023-12-11T00:00:00Z","timestamp":1702252800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Australian Research Council Discovery Projects Programs","award":["DP150104327"],"award-info":[{"award-number":["DP150104327"]}]},{"name":"Australian Research Council Discovery Projects Programs","award":["DP190102773"],"award-info":[{"award-number":["DP190102773"]}]},{"name":"Australian Research Council Discovery Projects Programs","award":["DP190101576"],"award-info":[{"award-number":["DP190101576"]}]},{"name":"Australian Research Council Discovery Projects Programs","award":["CE230100006"],"award-info":[{"award-number":["CE230100006"]}]},{"name":"Australian Research Council Centre of Excellence Project Programs","award":["DP150104327"],"award-info":[{"award-number":["DP150104327"]}]},{"name":"Australian Research Council Centre of Excellence Project Programs","award":["DP190102773"],"award-info":[{"award-number":["DP190102773"]}]},{"name":"Australian Research Council Centre of Excellence Project Programs","award":["DP190101576"],"award-info":[{"award-number":["DP190101576"]}]},{"name":"Australian Research Council Centre of Excellence Project Programs","award":["CE230100006"],"award-info":[{"award-number":["CE230100006"]}]},{"name":"Swinburne ECR-SUPRA program","award":["DP150104327"],"award-info":[{"award-number":["DP150104327"]}]},{"name":"Swinburne ECR-SUPRA program","award":["DP190102773"],"award-info":[{"award-number":["DP190102773"]}]},{"name":"Swinburne ECR-SUPRA program","award":["DP190101576"],"award-info":[{"award-number":["DP190101576"]}]},{"name":"Swinburne ECR-SUPRA program","award":["CE230100006"],"award-info":[{"award-number":["CE230100006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The engineering of thermo-optic effects has found broad applications in integrated photonic devices, facilitating efficient light manipulation to achieve various functionalities. Here, we perform both an experimental characterization and a theoretical analysis of these effects in integrated microring resonators made from high-index doped silica, which have had many applications in integrated photonics and nonlinear optics. By fitting the experimental results with theory, we obtain fundamental parameters that characterize their thermo-optic performance, including the thermo-optic coefficient, the efficiency of the optically induced thermo-optic process, and the thermal conductivity. The characteristics of these parameters are compared to those of other materials commonly used for integrated photonic platforms, such as silicon, silicon nitride, and silica. These results offer a comprehensive insight into the thermo-optic properties of doped silica-based devices. Understanding these properties is essential for efficiently controlling and engineering them in many practical applications.<\/jats:p>","DOI":"10.3390\/s23249767","type":"journal-article","created":{"date-parts":[[2023,12,11]],"date-time":"2023-12-11T14:12:51Z","timestamp":1702303971000},"page":"9767","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Thermo-Optic Response and Optical Bistablility of Integrated High-Index Doped Silica Ring Resonators"],"prefix":"10.3390","volume":"23","author":[{"given":"Junkai","family":"Hu","sequence":"first","affiliation":[{"name":"Optical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, Australia"},{"name":"School of Automation, Central South University, Changsha 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1115-610X","authenticated-orcid":false,"given":"Jiayang","family":"Wu","sequence":"additional","affiliation":[{"name":"Optical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Di","family":"Jin","sequence":"additional","affiliation":[{"name":"Optical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, Australia"},{"name":"School of Automation, Central South University, Changsha 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sai Tak","family":"Chu","sequence":"additional","affiliation":[{"name":"Department of Physics, City University of Hong Kong, Hong Kong SAR 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brent E.","family":"Little","sequence":"additional","affiliation":[{"name":"QXP Technology Inc., Xi\u2019an 710119, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Duan","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Computer Science and Engineering, Central South University, Changsha 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7717-1519","authenticated-orcid":false,"given":"Roberto","family":"Morandotti","sequence":"additional","affiliation":[{"name":"EMT (\u00c9nergie Mat\u00e9riaux T\u00e9l\u00e9communications Research Centre), INRS (Institut National de la Recherche Scientifique), Varennes, QC J3X 1S2, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David J.","family":"Moss","sequence":"additional","affiliation":[{"name":"Optical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"488","DOI":"10.1038\/s41578-021-00283-2","article-title":"Transforming heat transfer with thermal metamaterials and devices","volume":"6","author":"Li","year":"2021","journal-title":"Nat. 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