We investigate theoretically the errors in determining the reduced scattering and absorption
coefficients of semi-infinite turbid media from frequency-domain reflectance measurements …

A method is described for measuring optical properties and deriving chromophore
concentrations from diffuse reflection measurements at the surface of a turbid medium. The …

Monitoring of tissue blood volume and local oxygen saturation can inform the assessment of
tissue health, healing, and dysfunction. These quantities can be estimated from the …

Quantitative determination of chromophore concentrations by near infrared spectroscopy
(NIRS) is possible by using the differential pathlength of the detected light, measured …

Multiple pixel, frequency domain measurements of phase shift, θ, and modulation, m, in a
phantom containing an absorber obscured by a relatively non-absorbing scattering solution …

A set of equations derived to describe the optics of highly scattering materials are explained,
extended, and applied to the problem of in vitro and in vivo measurement of the relative …

The recent development of near-infrared time-and frequency-resolved tissue spectroscopy
techniques to probe tissue oxygenation and tissue oxygenation kinetics has led to the need …

A technique for measuring broadband near-infrared absorption spectra of turbid media that
uses a combination of frequency-domain (FD) and steady-state (SS) reflectance methods is …

Analog and digital technologies are presented for precise measurement of propagation
delay of photons from source and detector placed on portions of the human body. The goal …

The optical properties of white matter human brain, canine prostate and pig liver were
measured in the wavelength range 330-1100 nm. The measurements were carried out in …