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Theoretical model of the effective attenuation lengths based on water absorption and Mie scattering. The black stars indicate the reported effective attenuation lengths in mouse brains in vivo, 131 µm at 775 nm [17], 152∼158 µm at 920 nm [18], 305 ~ 319 µm at 1300 nm [18] and 383 µm at 1680 nm [3].
