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Phase-domain photoacoustics eliminating acoustic detection variations

Duan, Tingyang and Zhang, Ruochong and Feng, Xiaohua and Liu, Siyu and Ding, Ran and Zheng, Yuanjin and Gao, Fei (2017) Phase-domain photoacoustics eliminating acoustic detection variations. In: 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE , Piscataway, NJ, pp. 4026-4029. ISBN 978-1-5090-2809-2.

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As one of the fastest-growing imaging modalities in recent years, photoacoustic imaging has attracted tremendous research interest for various applications including anatomical, functional and molecular imaging. Majority of the photoacoustic imaging systems are based on time-domain pulsed photoacoustic method, which utilizes pulsed laser source to induce wideband photoacoustic signal revealing optical absorption contrast. An alternative way is frequency-domain photoacoustic method utilizing chirping modulation of laser intensity to achieve lower system cost. In this paper, we report another way of photoacoustic method, called phase-domain photoacoustic sensing, which explores the phase difference between two consequent intensity-modulated laser pulses induced photoacoustic measurements to reveal the optical property. The basic principle is introduced, modelled and experimentally validated in this paper, which opens another potential pathway to perform photoacoustic sensing and imaging eliminating acoustic detection variations beyond the conventional time-domain and frequency-domain photoacoustic methods.

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Additional Information:© 2017 IEEE.
Record Number:CaltechAUTHORS:20170921-110804815
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Official Citation:T. Duan et al., "Phase-domain photoacoustics eliminating acoustic detection variations," 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Jeju Island, South Korea, 2017, pp. 4026-4029. doi: 10.1109/EMBC.2017.8037739 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81681
Deposited By: Tony Diaz
Deposited On:21 Sep 2017 18:17
Last Modified:03 Oct 2019 18:45

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