Parallel acoustic delay lines for photoacoustic tomography
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SCOPUS
- Title
- Parallel acoustic delay lines for photoacoustic tomography
- Authors
- Yapici, MK; Kim, C; Chang, CC; Jeon, M; Guo, ZJ; Cai, X; Zou, J; Wang, LHV
- Date Issued
- 2012-11
- Publisher
- SPIE
- Abstract
- Achieving real-time photoacoustic (PA) tomography typically requires multi-element ultrasound transducer arrays and their associated multiple data acquisition (DAQ) electronics to receive PA waves simultaneously. We report the first demonstration of a photoacoustic tomography (PAT) system using optical fiber-based parallel acoustic delay lines (PADLs). By employing PADLs to introduce specific time delays, the PA signals (on the order of a few micro seconds) can be forced to arrive at the ultrasonic transducers at different times. As a result, time-delayed PA signals in multiple channels can be ultimately received and processed in a serial manner with a single-element transducer, followed by single-channel DAQ electronics. Our results show that an optically absorbing target in an optically scattering medium can be photoacoustically imaged using the newly developed PADL-based PAT system. Potentially, this approach could be adopted to significantly reduce the complexity and cost of ultrasonic array receiver systems. (c) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JBO.17.11.116019]
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/10675
- DOI
- 10.1117/1.JBO.17.11.116019
- ISSN
- 1083-3668
- Article Type
- Article
- Citation
- JOURNAL OF BIOMEDICAL OPTICS, vol. 17, no. 11, 2012-11
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