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Interferometric fiber optic sensors for biomedical applications of optoacoustic imaging
Author(s) -
Lamela Horacio,
Gallego Daniel,
Gutierrez Rebeca,
Oraevsky Alexander
Publication year - 2011
Publication title -
journal of biophotonics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 66
eISSN - 1864-0648
pISSN - 1864-063X
DOI - 10.1002/jbio.201000096
Subject(s) - interferometry , ultrasonic sensor , optical fiber , materials science , transducer , imaging phantom , optics , wideband , laser , fiber optic sensor , sensitivity (control systems) , optoelectronics , biomedical engineering , acoustics , physics , electronic engineering , engineering
We present a non‐metallic interferometric silica optical fiber ultrasonic wideband sensor for optoacoustic imaging applications. The ultrasonic sensitivity of this sensor has been characterized over the frequency range from 1 to 10 MHz. A comparative analysis has been carried out between this sensor and an array of piezoelectric transducers using optoacoustic signals generated from an optical absorbent embedded in a tissue mimicking phantom. Also, a two dimensional reconstructed image of the phantom using the fiber interferometric sensor is presented and compared to the image obtained using the Laser Optoacoustic Imaging System, LOIS‐64B. The feasibility of our fiber optic based sensor for wideband ultrasonic detection is demonstrated. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)