Refractive index dispersion of a-Si/sub 1-x/C/sub x/:H

The refractive-index behavior (magnitude and dispersion) of a-Si/sub 1-x/C/sub x/:H undoped is presented. Using the single-effective-oscillator model, the dispersion energy E/sub d/ which is a measure of the strength of interband optical transitions, is found. Experimentally, is also pointed out the influence of the carbon content on the model parameters.