20 February 2018 Parallelised photoacoustic signal acquisition using a Fabry-Perot sensor and a camera-based interrogation scheme
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Abstract
Tomographic photoacoustic (PA) images acquired using a Fabry-Perot (FP) based scanner offer high resolution and image fidelity but can result in long acquisition times due to the need for raster scanning. To reduce the acquisition times, a parallelised camera-based PA signal detection scheme is developed. The scheme is based on using a sCMOScamera and FPI sensors with high homogeneity of optical thickness. PA signals were acquired using the camera-based setup and the signal to noise ratio (SNR) was measured. A comparison of the SNR of PA signal detected using 1) a photodiode in a conventional raster scanning detection scheme and 2) a sCMOS camera in parallelised detection scheme is made. The results show that the parallelised interrogation scheme has the potential to provide high speed PA imaging.
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T. Saeb Gilani, T. Saeb Gilani, C. Villringer, C. Villringer, E. Zhang, E. Zhang, H. Gundlach, H. Gundlach, J. Buchmann, J. Buchmann, S. Schrader, S. Schrader, J. Laufer, J. Laufer, } "Parallelised photoacoustic signal acquisition using a Fabry-Perot sensor and a camera-based interrogation scheme", Proc. SPIE 10494, Photons Plus Ultrasound: Imaging and Sensing 2018, 1049431 (20 February 2018); doi: 10.1117/12.2290223; https://doi.org/10.1117/12.2290223
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