Matteo, Simon

attached are the first results of our experimental try to map also the polarization homogeneity of fused-silica substrates.

In total, I think that we can say that the homogeneity is almost perfect. The fluctuations in the map are probably due to fluctuations risen from the input polarization which cannot be filtered out. That would explain at least the stripe-like pattern in the map along the way of the measurement.

Anyway, the next steps will be to convert the bench back to a PCI for taking an absorption map of the AQ2 sample.