HST Fold Mirror Test v.s. CODE V

[Jashcraf]

Amplitude

Phase

Real

Imag

[Jashcraf]

Here's the CODE V result, phase is off!

Coupled with that, wavelength might be off

[Jashcraf]

Comparing the two

[Jashcraf]

The phase is closer if we use n - ik for the index model

Maybe this is a good question for Nasrat. But this also necessitated the s-polarization being shifted by -pi, and the p-polarization being shifted by +pi.

e.g.

fs *= np.exp(-1j*np.pi)
fp *= np.exp(1j*np.pi)

And the amplitude calculation isn't affected.

[Jashcraf]

This has to do with how MUL defines coatings, which depending on how they are specified, will use n - ik