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Characterization of broadband fiber optic line detectors for photoacoustic tomography
Author(s) -
Berer Thomas,
Veres Istvan A.,
Grün Hubert,
BauerMarschallinger Johannes,
Felbermayer Karoline,
Burgholzer Peter
Publication year - 2012
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.201100110
Subject(s) - optics , detector , optical fiber , materials science , photoacoustic imaging in biomedicine , broadband , fiber , tomography , frequency response , characterization (materials science) , optical transfer function , physics , electrical engineering , composite material , engineering
The frequency response of fiber optic line detectors is investigated in the presented paper. An analytical model based on oblique scattering of elastic waves is used to calculate the frequency dependent acousto‐optical transfer functions of bare glass optical and polymer optical fibers. From the transfer functions the transient response of fibers detectors to photoacoustically excited spherical sources is derived. Photoacoustic tomography is simulated by calculating the temporal response of arrays of fiber optic line detectors and subsequent image reconstruction. The results show that the choice of the fiber material is of significant importance and influences the quality of imaging. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)