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. 2008 Apr;23(2):189-93.
doi: 10.1007/s10103-007-0471-9. Epub 2007 Jul 14.

Multilaser photoplethysmography technique

L Gailite  1 , J Spigulis, A Lihachev
Affiliations

Multilaser photoplethysmography technique

L Gailite et al. Lasers Med Sci. 2008 Apr.

Abstract

New technique for parallel recording of reflection photoplethysmography signals in broad spectral band (violet to NIR) has been developed based on fiber-coupled laser irradiation and time-resolved spectrometric detection. Differences in photoplethysmography waveforms that were recorded simultaneously at different wavelengths confirmed the depth variety of the skin blood pulsation dynamics, thus the proposed methodology has a potential for application in skin microcirculation studies.

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