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3 March 2022 Thermal drift calibration of whispering gallery mode microcavities using optical frequency domain reflectometry
Cheng Li, Sartanee Suebka, Judith Su
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Proceedings Volume PC11976, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX; PC1197604 (2022) https://doi.org/10.1117/12.2609143
Event: SPIE BiOS, 2022, San Francisco, California, United States
Abstract
Thermal effects need to be accurately measured and/or controlled to generate continuous kinetic binding curves with whispering gallery mode (WGM) microcavity sensors. We use a high spatial resolution optical frequency domain reflectometry system at 780 nm to capture the Rayleigh backscattering signal within a microtoroid optical resonator for temperature calibration. It is shown that this system has a temperature detection accuracy of 30 mK. This technique characterizes thermal effects in the microcavity and the surrounding environment, thus enabling lower limits of detection to be achieved.
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Cheng Li, Sartanee Suebka, and Judith Su "Thermal drift calibration of whispering gallery mode microcavities using optical frequency domain reflectometry", Proc. SPIE PC11976, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX, PC1197604 (3 March 2022); https://doi.org/10.1117/12.2609143
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KEYWORDS
Optical microcavities
Calibration
Reflectometry
Thermography
Particles
Thermal effects
Spatial resolution
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