access counter

Calculation of the dependent variable

As the dielectric constant is the index of refraction squared we obtain a simple relation



and conversely



The Fresnel coefficients read in usual notation

    

and

    

where, of course, the Sneel's law holds (with the consequence ). The reflactance and transmittance, obeying , are defined as and respectively, when the indices are appended correctly. For the unpolarised light, .

The ellipsometric angles are defined as .





References: