TY - GEN
T1 - Photoacoustic imaging by using a bundle of thin hollow-optical fibers
AU - Seki, A.
AU - Iwai, K.
AU - Katagiri, T.
AU - Matsuura, Y.
N1 - Publisher Copyright:
© 2016 SPIE.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
KW - Hollow optical fiber
KW - Photoacoustic imaging
KW - Ultrasound
UR - http://www.scopus.com/inward/record.url?scp=84973343040&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973343040&partnerID=8YFLogxK
U2 - 10.1117/12.2209000
DO - 10.1117/12.2209000
M3 - Conference contribution
AN - SCOPUS:84973343040
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI
A2 - Gannot, Israel
PB - SPIE
T2 - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI
Y2 - 13 February 2016 through 14 February 2016
ER -