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Temperature sensitivity control of an inkjet-printed optical resonator on pillar

Marc-Antoine Bianki, Régis Guertin, Cédric Lemieux-Leduc and Yves-Alain Peter

Article (2024)

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Abstract

We report a whispering gallery mode resonator on a pillar using inkjet printing combined with traditional microfabrication techniques. This approach enables several different polymers on the same chip for sensing applications. However, polymers inherently exhibit sensitivity to multiple stimuli. To mitigate temperature sensitivity, careful selection of design parameters is crucial. By precisely tuning the undercut-to-radius ratio of the resonator, a linear dependence in temperature sensitivity ranging from −41.5 pm/°C to 23.4 pm/°C, with a zero-crossing point at 47.6% is achieved. Consequently, it is feasible to fabricate sensing devices based on undercut microdroplets with minimal temperature sensitivity. The lowest measured temperature sensitivity obtained was 5.9 pm/°C, for a resonator with an undercut-to-radius ratio of 53%.

Uncontrolled Keywords

whispering gallery modes; optical sensors; microcavities; temperature sensors; thermal expansion; thermo-optic effects; inkjet printing; microfabrication

Subjects: 3100 Physics > 3100 Physics
3100 Physics > 3110 Optics (see also Photon devices, 2505)
Department: Department of Engineering Physics
Funders: CRSNG/NSERC, Fonds de recherche du Québec - Nature et technologies (FRQNT), Canadian Microelectronics Corporation (CMC)
Grant number: RGPIN-2020-06692, ALLRP577113-2022, ESD3-534843-2019, B2X271283
PolyPublie URL: https://publications.polymtl.ca/57111/
Journal Title: ACS Applied Materials & Interfaces
Publisher: American Chemical Society (ACS)
DOI: 10.1021/acsami.3c14406
Official URL: https://doi.org/10.1021/acsami.3c14406
Date Deposited: 25 Jan 2024 13:29
Last Modified: 08 Apr 2024 18:24
Cite in APA 7: Bianki, M.-A., Guertin, R., Lemieux-Leduc, C., & Peter, Y.-A. (2024). Temperature sensitivity control of an inkjet-printed optical resonator on pillar. ACS Applied Materials & Interfaces, 8 pages. https://doi.org/10.1021/acsami.3c14406

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