Research Papers: Imaging

Spectrally encoded photoacoustic microscopy using a digital mirror device

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

Washington University in St. Louis, Optical Imaging Laboratory, Department of Biomedical Engineering, 1 Brookings Drive, St. Louis, Missouri 63130

J. Biomed. Opt. 17(6), 066020 (Jun 11, 2012). doi:10.1117/1.JBO.17.6.066020
History: Received February 15, 2012; Revised April 16, 2012; Accepted May 11, 2012
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Abstract.  We have developed spectrally encoded photoacoustic microscopy using a digital mirror device for multi-wavelength tomography, which enables fast spectral imaging of optical absorption. The optical illumination wavelengths are multiplexed at a laser pulse repetition rate of 2kHz. Liquid samples, whole blood, and blood vessels in mouse ears were imaged. Compared with internal wavelength tuning of a narrow-band laser, external wavelength tuning based on a digital mirror device improves the data acquisition speed of spectral photoacoustic microscopy. Compared with external wavelength scanning of a wide-band laser with the same pulse energy, spectral encoding improves the signal-to-noise ratio.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Yu Wang ; Konstantin Maslov and Lihong V. Wang
"Spectrally encoded photoacoustic microscopy using a digital mirror device", J. Biomed. Opt. 17(6), 066020 (Jun 11, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.6.066020


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