Pengbo, Simon

Yesterday and today we repeated basically the measurements we did on S5 for S1. The results can be seen in the attachement.

Also for this one, it became obvious that there is a large absorption excess on the surface, This time, however, it seems that this excess is existent on both surfaces. Therefore, I had run the surface-absorption measurements on both (as the time I write this, the second one did not yet finish).
The center-map shows a distribution which is somewhat comparable to the measurements we did last year. However, the mean absorption coefficient has been increased by a factor of ~2.

The next step will be to do the birefringence measurements on both samples.