Besides reflectance, transmittance and ATR spectra (that are computed by 'R,T,ATR' objects in the spectrum list) you can also compute ellipsometry spectra. To do so, you have to create an object of type 'Ellipsometry' in the spectrum list.

The following items must be defined to uniquely set the spectrum to be simulated:

Range

The Range command lets you define the spectral range of the simulated spectrum. As in previous SCOUT versions this range is not required to be the same as the one used for the dielectric function definitions.

Spectrum type

Here you can choose between different quantities that are computed. At present the following options are possible:

•tan(Psi), cos(Delta)

•Psi, Delta (both in degrees)

Angle

This is the angle of incidence being zero at normal incidence of light and 90° at oblique incidence. As mentioned above the light is incident from the top halfspace of the layer stack.

You can also describe experiments where the illumination comes from the bottom of the the sample by setting the angle to a value between 90° and 180°. If you choose 172°, for example, the spectrometer beam comes from the sample's back with an angle of incidence of 180°-172°=8°.