Improved Method for the Dispersion of Refractive Indices Based on Transmission Spectroscopic Ellipsometry

Abstract

In our previous study, we have proposed a novel analysis method to determine the dispersion of refractive indices based on the plural incidence renormalized transmission spectroscopic ellipsometry. This method was, however, applicable only to the homogeneous cell. In this paper, we introduce the improved method to determine the wavelength dispersion of refractive indices by using the twisted nematic cell as well as by the homogeneous cell. Numerically calculated refractive indices of ordinary and extraordinary rays were in good agreement with the refractive indices experimentally measured by the Abbe Refractometer.

Keywords:

• Berreman's 4 × 4 matrix method
• Cauchy equation
• ellipsometry
• Jones matrix method
• refractive index

Acknowledgment

The authors thank Merck Japan Ltd. and Takahashi Industrial and Economic Research Foundation in Japan for their valuable support.