Benjamin T Cecchetto
ABSTRACT
Empirical measurement of the attenuation of a light ray (i.e. a laser beam) through a scattering medium is challenging because the radiance of the exiting light is near the noise floor of the detector. The SNR can be improved with multiplexed illumination, where several different rays are sent simultaneously resulting in much higher outgoing radiance. The contribution of an individual ray is determined by solving a linear system. We perform an experiment to determine the empirical improvement in SNR using multiplexed illumination in place of single-ray illumination. The experiment shows that the empirical improvement does not follow the predicted theoretical improvement.
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