Simultaneous measurement of optical constants of dispersive material at visible and infrared wavelengths.
A systematic method has been proposed to evaluate the complex refractive indices and thicknesses of dispersive polymer thin films in both visible and infrared regions. The curve-fitting method has been applied to the measurement of the film thicknesses and complex refractive indices in the visible and near-infrared regions. The accuracy of the evaluated film thickness is of the order of +/-0.5%. The presented method is useful for characterizing the optical properties of polymers whose refractive indices are near to those of substrates.
Wang
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Y
Faculty of Engineering, Department of Electrical Communications, Tohoku University, Sendai 980-77, Japan.
Miyagi
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M