Optical Properties Assessment for Liquid Phantoms Using Fiber Based Frequency-Modulated Light Scattering Interferometry

• Fiber based frequency-modulated light scattering interferometry (FMLSI) is developed for optical properties studies of liquid phantoms, made of Intralipid (R). By employing optical frequency modulation on a tunable diode laser, the power spectrum of the heterodyne-detected intensity fluctuations through the dynamic turbid medium is a combination of the time-of-flight distribution and the Doppler power spectrum due to the movement of the scattering particles. The reduced scattering coefficient, absorption coefficient and Brownian diffusion constant are retrieved by employing nonlinear fitting to the power spectrum based on diffusion theory.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Frequency-modulated light scattering interferometry

FMLSI

frequency-modulated continuous-wave

FMCW

optical properties

reduced

scattering coefficient

absorption coefficient

dynamic turbid media

Brownian

motion

diffusion constant

medical diagnostics

liquid foods

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)