software to fit optical spectra - Quantum Materials Group

Figure 3-22 The general RefFIT view after the data fitting ‘by hand’.
OK, it is time for computer to work a little bit and refine the model parameters. We only
have to set up the fitting task to tell him what exactly we want to fit.
Open the “Fit” window (Figure 3-12). We have to specify the chi-square terms
2
χ ν and
their weights ν
w from Equation 2-12. Click the button. In the window “Add Chi-square
term(s)” (Figure 3-23) select all available terms: “[S1] “S1DC.DAT” – “Model1””, “[E2]
“E2.DAT” – “Model1””, “[E1] “E1.DAT” – “Model1”” and “[R] “R.DAT” – “Model1”” and
click .
Guide to RefFIT Page 39