The optical properties of tissues are important for dosimetry in laser therapies, and diagnostics such as reflectance spectroscopy. The optical properties of neonatal skin have been determined in the 400-750 nm range.
I. S. Saidi, S. L. Jacques, F. K. Tittel, "Optical properties of neonatal skin," Proceedings of the Conference on Lasers and Electro-Optics, , (1990).