Accuracy of linear depolarisation ratios in clear air ranges measured with POLIS-6 at 355 and 532 nm 2/2

Linear depolarization ratios in clean air ranges were measured with
POLIS-6 at 355 and 532 nm. The mean deviation from the theoretical
values, including the rotational Raman lines within the filter
bandwidths, amounts to 0.0005 at 355 nm and to 0.0012 at 532 nm.
The mean uncertainty of the measured linear depolarization ratio of
clean air is about 0.0005 at 355 nm and about 0.0006 at 532 nm.