Fig. 4From: Full degree-of-freedom polarization hologram by freeform exposure and inkjet printingCharacterization of fabricated DOE samples. Measured diffraction efficiencies of left, center and right regions of a blue sample, b green sample and c red sample. Captured images of the diffracted RGB laser lights of d the sample with spin-coating method and e the inkjet-printed sample. Scale bars: 10Â mmBack to article page