Evaluation of a Polarization-Sensitive, Dual-Wavelength Wearable Photoplethysmography Sensor Across a Range of Skin Tones
Rutendo Jakachira, Wenyuan Yan, Sian C. Thomas, Yareli Macias-Sanchez, Lovisa Werner, Joshua A. Burrow, SHIRA I. DUNSIGER, Kimani C. Toussaint
This study evaluates a dual-wavelength, polarization-sensitive PPG sensor across different skin tones, finding that cross-polarization improves perfusion index measurements, particularly for darker skin tones.
Biophotonics discovery. · Nov 13, 2025Peer-reviewedBioengineering