Figure 5
(a) Spectrum SpS(ΔΘ = 0) recorded with a non-magnetic sample containing Ho (HoCo2) by flipping the QWP between a constant and large negative offset ΔΘref = −300 arcsec and ΔΘ = 0 arcsec. (b) Spectrum SpQ(ΔΘ = 0) recorded without the sample. (c) Signal obtained as the difference between spectra (a) and (b). |