Is your feature request related to a problem? Please describe.
The best mirror reflectivity result from the pfRICH mirror project so far is provided here. This result may be useful for future pfRICH simulation studies.

Describe the solution you'd like
The mirror reflectivity data, expressed as a function of wavelength, will be added as a matrix to epic/compact/optical_materials.xml.

Describe alternatives you've considered
Currently, there are no alternative solutions available for this implementation.

Additional context
Coating Batch 53 includes six mirrors coated with 5.04 kA of chromium (Cr) and 20.22 kA of aluminum (Al).