L. Poupinet et al., HETERODYNE-DETECTION APPLIED TO THE MEASU REMENT OF EXTINCTION COEFFICIENTS IN SOME DIFFUSING BIOLOGICAL MEDIA, Annales de physique, 20(2), 1995, pp. 141-142
Heterodyne detection allows us to measure the extinction coefficient t
hrough various mammalian tissues such as muscle, liver and skin. Measu
rements were achieved on tissue thicknesses from 2 to 5 mm, correspond
ing to maximal attenuations of 9 OD.