1 March 2008 Photoacoustic imaging of biological tissue with intensity-modulated continuous-wave laser
Author Affiliations +
J. of Biomedical Optics, 13(2), 024006 (2008). doi:10.1117/1.2904965
Abstract
We build a photoacoustic imaging system using an intensity-modulated continuous-wave laser source, which is an inexpensive, compact, and durable 120-mW laser diode. The goal is to significantly reduce the costs and sizes of photoacoustic imaging systems. By using a bowl-shaped piezoelectric transducer, whose numerical aperture is 0.85 and resonance frequency is 2.45 MHz, we image biological tissues with a lateral resolution of 0.45 mm, an axial resolution of 1 mm, and an SNR as high as 43 dB.
Konstantin I. Maslov, Lihong V. Wang, "Photoacoustic imaging of biological tissue with intensity-modulated continuous-wave laser," Journal of Biomedical Optics 13(2), 024006 (1 March 2008). http://dx.doi.org/10.1117/1.2904965
JOURNAL ARTICLE
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KEYWORDS
Transducers

Imaging systems

Ultrasonics

Signal to noise ratio

Continuous wave operation

Photoacoustic imaging

Semiconductor lasers

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