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Journal of Biomedical Optics

Photoacoustic imaging of biological tissue with intensity-modulated continuous-wave laser
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Paper 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.

Paper Details

Date Published: 1 March 2008
PDF: 5 pages
J. Biomed. Opt. 13(2) 024006 doi: 10.1117/1.2904965
Published in: Journal of Biomedical Optics Volume 13, Issue 2
Show Author Affiliations
Konstantin I. Maslov, Washington Univ. in St. Louis (United States)
Lihong V. Wang, Washington Univ. in St. Louis (United States)

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