Please use this identifier to cite or link to this item: https://doi.org/10.1364/OE.382226
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dc.titleVernier effect-based tunable mid-infrared sensor using silicon-on-insulator cascaded rings
dc.contributor.authorChang, Yuhua
dc.contributor.authorDong, Bowei
dc.contributor.authorMa, Yiming
dc.contributor.authorWei, Jingxuan
dc.contributor.authorRen, Zhihao
dc.contributor.authorLee, Chengkuo
dc.date.accessioned2021-04-16T11:29:36Z
dc.date.available2021-04-16T11:29:36Z
dc.date.issued2020-03-02
dc.identifier.citationChang, Yuhua, Dong, Bowei, Ma, Yiming, Wei, Jingxuan, Ren, Zhihao, Lee, Chengkuo (2020-03-02). Vernier effect-based tunable mid-infrared sensor using silicon-on-insulator cascaded rings. OPTICS EXPRESS 28 (5) : 6251-6260. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.382226
dc.identifier.issn10944087
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/189621
dc.description.abstractVernier effect has been captivated as a promising approach to achieve high-performance photonic sensors. However, experimental demonstration of such sensors in mid-infrared (MIR) range, which covers abundant absorption fingerprints of molecules, is still lacking. Here, we report Vernier effect-based thermally tunable photonic sensors using cascaded ring resonators fabricated on the silicon-on-insulator (SOI) platform. The radii and the coupling gaps in two rings are investigated as key design parameters. By applying organic liquids on our device, we observe an envelope shift of 48 nm with a sensitivity of 3000 nm/RIU and an intensity drop of 6.7 dB. Besides, our device can be thermally tuned with a sensitivity of 0.091 nm/mW. Leveraging the characteristic molecular absorption in the MIR, our work offers new possibilities for complex index sensing, which has wide applications in on-chip photonic sensors.
dc.language.isoen
dc.publisherOPTICAL SOC AMER
dc.sourceElements
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectOptics
dc.subjectSOI WAVE-GUIDE
dc.subjectHIGH-SENSITIVITY
dc.subjectOPTICAL SENSOR
dc.subjectMICRORING RESONATOR
dc.subjectGERMANIUM
dc.subjectBIOSENSOR
dc.subjectSAPPHIRE
dc.subjectDESIGN
dc.subjectFILTER
dc.subjectAIR
dc.typeArticle
dc.date.updated2021-04-16T05:24:27Z
dc.contributor.departmentDEPT OF ELECTRICAL & COMPUTER ENGG
dc.description.doi10.1364/OE.382226
dc.description.sourcetitleOPTICS EXPRESS
dc.description.volume28
dc.description.issue5
dc.description.page6251-6260
dc.published.statePublished
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