期刊
OPTICS LETTERS
卷 35, 期 17, 页码 2843-2845出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.35.002843
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- National Institutes of Health (NIH) [NCI 1 R01 CA138594-01]
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. (C) 2010 Optical Society of America
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