Sanchez-Cano, A. Saldaña-Díaz, J.E. Perdices, L. Pinilla, I. Salgado-Remacha, F.J. Jarabo, S. Measurement method of optical properties of ex vivo biological tissues of rats in the near-infrared range Appl. opt. (2004) 10.1364/AO.384614 2020 2020