29 April 2016 Transmission optical coherence tomography sensing
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Abstract
We demonstrate that Fourier-domain transmission OCT is a versatile tool to measure optical material properties of turbid media. We develop an analytical expression for the transmission OCT signal. Based on this analysis we determine the group refractive index, group velocity dispersion, absorption coefficient, and scattering coefficient. The optical dispersion is accurately measured for glasses, liquids, and water/glucose mixtures. The optical attenuation is measured in the spatial domain and compared to Mie calculations combined with concentration dependent scattering effects. In the wave vector domain the spectral dependence of the optical attenuation is measured and compared to literature values. The developed technique can be used for optical sensing of attenuation and dispersion.
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A. K. Trull, J. van der Horst, J. G. Bijster, J. Kalkman, "Transmission optical coherence tomography sensing", Proc. SPIE 9899, Optical Sensing and Detection IV, 98991M (29 April 2016); doi: 10.1117/12.2227503; https://doi.org/10.1117/12.2227503
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