Improving the sensitivity of Fabry-Pérot pressure sensors for photoacoustic imaging

Jakub Czuchnowski; Robert Prevedel

doi:10.1117/12.2583032

5 March 2021 Improving the sensitivity of Fabry-Pérot pressure sensors for photoacoustic imaging

Jakub Czuchnowski, Robert Prevedel

Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 116421T (2021) https://doi.org/10.1117/12.2583032
Event: SPIE BiOS, 2021, Online Only

Abstract

We introduce a general theoretical framework to study arbitrary light-cavity interactions for planar Fabry-Perot (FP) cavities and explain how optical aberrations reduce optical sensitivity by exciting higher order spatial modes. Moreover we show experimentally that the sensitivity of realistic FP cavities can be improved up to three-fold by a synergistic combination of adaptive optics (AO) and mode filtering. Finally, we discuss the challenges of achieving large sensitivity improvements under photoacoustic imaging conditions and present first results towards implementation of AO-corrected systems, as well as complementing AO with synergistic strategies for improving FP sensitivity.

Conference Presentation

Citation Download Citation

Jakub Czuchnowski and Robert Prevedel "Improving the sensitivity of Fabry-Pérot pressure sensors for photoacoustic imaging", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 116421T (5 March 2021); https://doi.org/10.1117/12.2583032

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