Miniature ultrasound detector arrays in silicon photonics using amplitude transmission monitoring

Yoav Hazan; Michael Nagli; Ahiad Levi; Amir Rosenthal

doi:10.1117/12.2670090

11 August 2023 Miniature ultrasound detector arrays in silicon photonics using amplitude transmission monitoring

Yoav Hazan, Michael Nagli, Ahiad Levi, Amir Rosenthal

Proceedings Volume 12631, Opto-Acoustic Methods and Applications in Biophotonics VI; 126310T (2023) https://doi.org/10.1117/12.2670090
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

Silicon-photonics is a new ultrasound-detection technology, based on optical resonators, with unparalleled miniaturization levels, sensitivities, bandwidths, and capable of producing dense resonator arrays. Conventional techniques, based on tuning a continuous-wave laser to the resonator wavelength, are not scalable due to the wavelength disparity between the resonators, requiring a separate laser for each resonator. In this work, we show that also the Q-factor and transmission peak of silicon-based resonators can be pressure sensitive, develop a readout scheme based on monitoring the amplitude transmission, and demonstrate its compatibility with optoacoustic tomography.

Citation Download Citation

Yoav Hazan, Michael Nagli, Ahiad Levi, and Amir Rosenthal "Miniature ultrasound detector arrays in silicon photonics using amplitude transmission monitoring", Proc. SPIE 12631, Opto-Acoustic Methods and Applications in Biophotonics VI, 126310T (11 August 2023); https://doi.org/10.1117/12.2670090

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