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We experimentally demonstrated slow wave enhanced phase and spectral sensitivity in asymmetric Michelson interferometer sensors with a phase sensitivity 277,750 rad/RIU-cm and theoretical phase sensitivity as high as 461,810 rad/RIU-cm. In the context of low-cost chip integrated photonic packaged sensors, in this paper we will experimentally demonstrate a method for active tuning of interferometer fringes using phase change materials that will potentially overcome fabrication induced variation of interference fringe wavelengths, thus allowing sensor chip packaging with a fixed wavelength laser and available integrated photodetectors.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Jianhao Shen, Juan Carlos Gauna, Arushi Rai, Liam McClimans, Roseanna Lawandi, Asela Perera, Madhuri Kango-Singh, Swapnajit Chakravarty, "Fixed wavelength interferometer sensors for low-cost chem-bio sensing applications," Proc. SPIE 12861, Frontiers in Biological Detection: From Nanosensors to Systems XVI, 1286105 (13 March 2024); https://doi.org/10.1117/12.3003036