Open AccessImprovement of sensitivity in continuous wave near infrared spectroscopy systems by using silicon photomultipliers
Author(s) -
Roberto Pagano,
Sebania Libertino,
D. Sanfilippo,
Giorgio Fallica,
S. Lombardo
Publication year - 2016
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.7.001183
Subject(s) - photomultiplier , materials science , optics , spectroscopy , silicon photomultiplier , continuous wave , optoelectronics , near infrared spectroscopy , infrared , silicon , diode , sensitivity (control systems) , detector , physics , laser , scintillator , electronic engineering , quantum mechanics , engineering
We experimentally analyze the signal-to-noise ratio of continuous wave (CW) near infrared spectroscopy (NIRS) reflectance systems based on light emitting diodes and silicon photomultipliers for high performance low cost NIRS biomedical systems. We show that under suitable experimental conditions such systems exhibit a high SNR, which allows an SDS of 7 cm, to our knowledge the largest ever demonstrated in a CW-NIRs system.