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. 2016 Dec 5;105(3):891–899. doi: 10.1002/jbm.a.35959

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© 2016 The Authors. Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Schematics of the two‐photon polarization setup. NA and M are the numerical aperture of the objective and the magnification of the telescope, respectively; PH: pin hole; APD: avalanche photodiode; PC: personal computer.