Fast diffuse correlation spectroscopy with a low-cost, fiber-less embedded diode laser.
Biomed Opt Express
; 12(11): 6686-6700, 2021 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-34858674
Diffuse correlation spectroscopy (DCS), a popular optical technique for fast noninvasive measurement of blood flow, is commonly implemented using expensive fiber-coupled long coherence length laser systems. Here, we report the development of a portable and fiber-less approach that can be used as a low-cost alternative to illuminate tissue in DCS instruments. We validate the accuracy and noise characteristics of the fiber-less DCS laser source, by comparisons against traditional DCS light sources, with experiments on controlled tissue-simulating phantoms and in humans.
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MEDLINE
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En
Ano de publicação:
2021
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Article