General Approach to Deriving Index of Refraction Values of Optical Coating Layers from Transmittance Spectra
Sunday, October 1, 2023
3:30 PM - 3:50 PM

Ronald R. Willey, Willey Optical, Consultants, Melbourne, FL
Given the transmittance spectrum of a process witness sample, the procedures and rational of deriving the index of refraction values versus wavelength from this spectrum are demonstrated by example. The various index of refraction models, algorithms, and functions are described. Some of the functions are only mathematical equations for fitting to the spectral data, and others have a physical basis in nature.

Ronald Willey - Willey Optical, Consultants