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Proceedings Paper

Photoacoustic imaging by using a bundle of thin hollow-optical fibers
Author(s): A. Seki; K. Iwai; T. Katagiri; Y. Matsuura
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Paper Abstract

We propose a photoacoustic imaging system composed of a flexible bundle of thin hollow-optical fibers that enables endoscopic diagnosis. The hollow-fiber bundle involves 37 fibers with an inner diameter of 100 μm and the total diameter of the bundle is 1.2 mm. A laser beam for photoacoustic excitation is scanned at the input end of fiber bundle and therefore, no scanning mechanism is necessary at the distal end. In addition, owing to the small numerical aperture of hollow optical fibers, a high resolution image is obtained without using a micro-lens array at the end. By using the fiber bundle probe, photoacoustic imaging of blood vessels in the ovarian membrane of fish were successfully obtained with a laser fluence of around 2.8 mJ/cm2.

Paper Details

Date Published: 7 March 2016
PDF: 6 pages
Proc. SPIE 9702, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI, 970202 (7 March 2016); doi: 10.1117/12.2209000
Show Author Affiliations
A. Seki, Tohoku Univ. (Japan)
K. Iwai, Sendai National College of Technology (Japan)
T. Katagiri, Tohoku Univ. (Japan)
Y. Matsuura, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 9702:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI
Israel Gannot, Editor(s)

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