Research Papers

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

[+] Author Affiliations
Konstantin Maslov, Lihong V. Wang

Washington University in St. Louis, Department of Biomedical Engineering, Optical Imaging Laboratory, Campus Box 1097, One Brookings Drive, St. Louis, Missouri 63130-4899

J. Biomed. Opt. 13(2), 024006 (April 14, 2008). doi:10.1117/1.2904965
History: Received April 06, 2007; Revised October 29, 2007; Accepted November 07, 2007; Published April 14, 2008
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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 2.45MHz, we image biological tissues with a lateral resolution of 0.45mm, an axial resolution of 1mm, and an SNR as high as 43dB.

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© 2008 Society of Photo-Optical Instrumentation Engineers

Citation

Konstantin Maslov and Lihong V. Wang
"Photoacoustic imaging of biological tissue with intensity-modulated continuous-wave laser", J. Biomed. Opt. 13(2), 024006 (April 14, 2008). ; http://dx.doi.org/10.1117/1.2904965


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