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Proceedings Paper

DMD-based spatially Fourier-encoded photoacoustic microscopy
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Paper Abstract

We present spatially Fourier-encoded photoacoustic microscopy using a digital micromirror device (DMD). The spatial fluence distribution of laser pulses is Fourier-encoded by the DMD, and a series of such encoded photoacoustic (PA) measurements enables decoding of the spatial distribution of optical absorption. By imaging a chromium target, we demonstrated the throughput and Fellgett advantages, which increased the PA signal-to-noise ratio (SNR) compared to raster scanning. The system was used to image two biological targets, a monolayer of red blood cells, and melanoma cells. The enhanced SNR benefited PA images by increasing the image’s contrast-to-noise ratio and target identifiability.

Paper Details

Date Published: 11 March 2015
PDF: 7 pages
Proc. SPIE 9323, Photons Plus Ultrasound: Imaging and Sensing 2015, 932324 (11 March 2015); doi: 10.1117/12.2076783
Show Author Affiliations
Jinyang Liang, Washington Univ. in St. Louis (United States)
Liang Gao, Washington Univ. in St. Louis (United States)
Chiye Li, Washington Univ. in St. Louis (United States)
Lihong V. Wang, Washington Univ. in St. Louis (United States)


Published in SPIE Proceedings Vol. 9323:
Photons Plus Ultrasound: Imaging and Sensing 2015
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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