期刊
BIOMEDICAL OPTICS EXPRESS
卷 4, 期 11, 页码 2322-2331出版社
OPTICAL SOC AMER
DOI: 10.1364/BOE.4.002322
关键词
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资金
- Austrian Science Fund (FWF) [P25584-N20, S10503-N20]
- European Regional Development Fund (EFRE) in the framework of the EU-program Regio [13]
- federal state Upper Austria
- Austrian Science Fund (FWF) [P 25584] Funding Source: researchfish
- Austrian Science Fund (FWF) [P25584] Funding Source: Austrian Science Fund (FWF)
In photoacoustic imaging the ultrasonic signals are usually detected by contacting transducers. For some applications contact with the tissue should be avoided. As alternatives to contacting transducers interferometric means can be used to acquire photoacoustic signals remotely. In this paper we report on non-contact three and two dimensional photoacoustic imaging using an optical fiber-based Mach-Zehnder interferometer. A detection beam is transmitted through an optical fiber network onto the surface of the specimen. Back reflected light is collected and coupled into the same optical fiber. To achieve a high signal/noise ratio the reflected light is amplified by means of optical amplification with an erbium doped fiber amplifier before demodulation. After data acquisition the initial pressure distribution is reconstructed by a Fourier domain reconstruction algorithm. We present remote photoacoustic imaging of a tissue mimicking phantom and on chicken skin. (C) 2013 Optical Society of America
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