Journal
OPTICS LETTERS
Volume 34, Issue 5, Pages 671-673Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.000671
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Funding
- National Institutes of Health (NIH) [RO1 EB000712, RO1 NS046214]
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Recently, there has been growing interest in the development of photoacoustic flow measuring methods aimed to study microvascular blood flow in biological tissue. Here, we describe the M-mode photoacoustic particle flow imaging, using an optical resolution photoacoustic microscope equipped with a high-repetition-rate pulsed dye laser. We studied the flow of a diluted dyed particle suspension in a small tube embedded in a nonscattering medium as well as in a scattering medium simulating biological tissue. Potentially, the method can be applied to detect the flow speed of single red blood cells in a capillary. (C) 2009 Optical Society of America
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