Separating the scattering and absorption coefficients using the real and imaginary parts of the refractive index with low-coherence interferometry.

Published

Journal Article

We present an analytical method that yields the real and imaginary parts of the refractive index (RI) from low-coherence interferometry measurements, leading to the separation of the scattering and absorption coefficients of turbid samples. The imaginary RI is measured using time-frequency analysis, with the real part obtained by analyzing the nonlinear phase induced by a sample. A derivation relating the real part of the RI to the nonlinear phase term of the signal is presented, along with measurements from scattering and nonscattering samples that exhibit absorption due to hemoglobin.

Full Text

Duke Authors

Cited Authors

  • Robles, FE; Wax, A

Published Date

  • September 2010

Published In

Volume / Issue

  • 35 / 17

Start / End Page

  • 2843 - 2845

PubMed ID

  • 20808343

Pubmed Central ID

  • 20808343

Electronic International Standard Serial Number (EISSN)

  • 1539-4794

International Standard Serial Number (ISSN)

  • 0146-9592

Digital Object Identifier (DOI)

  • 10.1364/ol.35.002843

Language

  • eng