Fringes of Equal Reflection Coefficient Ratio and Their Application to the Determination of the Thickness and Refractive Index of Monomolecular Films II Determination of the Thickness and Refractive Index of Barium Stearate Double Layers

A method is described for determining the thickness and refractive index of barium stearate double layers. Films prepared by the method of Blodgett, but using a different piston oil, were found to have a thickness of 45.7A and an ordinary refractive index of 1.508.