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Proceedings Paper

Noncontact photoacoustic tomography using optical fiber-based heterodyne interferometer
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Paper Abstract

We propose the noncontact photoacoustic tomography system that reads the acoustic signal by using an optical fiberbased heterodyne interferometer. The surface displacement of a specimen, resulting from the acoustic wave generated by irradiation of a laser pulse and its absorption inside the specimen, is optically measured by the heterodyne interferometer. With the data set of the surface displacement, the photoacoustic image of the specimen is reconstructed by a Fourier transform based reconstruction algorithm. This proposed method is experimentally evaluated by using a phantom sample that contains PET fibers.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915795 (2 June 2014); doi: 10.1117/12.2059013
Show Author Affiliations
Jonghyun Eom, Gwangju Institute of Science and Technology (Korea, Republic of)
Seong Jun Park, Gwangju Institute of Science and Technology (Korea, Republic of)
Young Ho Kim, Gwangju Institute of Science and Technology (Korea, Republic of)
Chang Su Lee, The Univ. of Suwon (Korea, Republic of)
Byeong Ha Lee, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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