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. 2019 Jul 9;24(7):076001. doi: 10.1117/1.JBO.24.7.076001

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© The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Fig. 3 — (a) Absorbance spectra of the nine samples with different absorption coefficients ( $μ_{a} = 1.0 - 1.8 {cm}^{- 1}$ with $0.1 {cm}^{- 1}$ interval), and (b) relation between absorption coefficient and absorbance at 800 nm.