Noncontact photoacoustic imaging by using a modified optical-fiber Michelson interferometer

Jiao Lu; Yingzhe Gao; Zhenhe Ma; Bo Wang; Yi Wang

doi:10.1117/12.2212141

15 March 2016 Noncontact photoacoustic imaging by using a modified optical-fiber Michelson interferometer

Jiao Lu, Yingzhe Gao, Zhenhe Ma, Bo Wang, Yi Wang

Proceedings Volume 9708, Photons Plus Ultrasound: Imaging and Sensing 2016; 97084B (2016) https://doi.org/10.1117/12.2212141
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

We demonstrate a noncontact photoacoustic imaging (PAI) system in which an optical interferometer is used for ultrasound detection. The system is based on a modified optical-fiber Michelson interferometer that measures the surface displacement caused by photoacoustic pressure. A synchronization method is utilized to keep its high sensitivity to reduce the influence of ambient vibrations. The system is experimentally verified by imaging of a phantom. The experimental results indicate that the proposed system can be used for noncontact PAI with high resolution and high bandwidth.

Citation Download Citation

Jiao Lu, Yingzhe Gao, Zhenhe Ma, Bo Wang, and Yi Wang "Noncontact photoacoustic imaging by using a modified optical-fiber Michelson interferometer", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 97084B (15 March 2016); https://doi.org/10.1117/12.2212141

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