Simon, Pengbo

Today we finished the charaterization of the birefringence properties on Shinkosha S1 substrate. For the s-pol, we got 87.77 +/- 0.25 deg, which is slightly better than last year's result, 87.1+/- 0.05 deg. For the p-pol, we got 1.93+/- 0.68 deg, because we didn't do this measurment last year, there are no comparision. From the maps, it seems this time the distribution is more homogenous.