Figure 2

Modulation visibility for polarization-analyzed DFI. (a) Visibility maps for the symmetric Talbot-Lau polarized neutron grating interferometer setup in four configurations: without the polarization analyzer in place and spin-up \(\big | \uparrow \big \rangle\) (top left), without the polarization analyzer in place and spin-down \(\big | \downarrow \big \rangle\) (top right), with the polarization analyzer in place and spin-up \(\big | \uparrow \big \rangle\) (bottom left) and with the polarization analyzer in place and spin-down \(\big | \downarrow \big \rangle\) (bottom rigth). (b) Intensity modulation for the 4 different color coded configurations reported in (a) and the corresponding fitted sinusoidal curves. The color coded boxes in (a) delimit the fitted area for the intensity modulation fitting.