Fig. 4: Experimental characterization of the entanglement-controlled vectorial meta-holography (ECVMH)

a ECVMH characterization setup. LPF, long-pass filter; PBS, polarizing beam splitter; IF, interference filter; SMF, single-mode fiber; MMF, multi-mode fiber. b The SNR enhancement from single photon (upper) to correlation (lower) holography, calculated as \({\rm{SNR}}=10\log ({I}_{\rm{signal}}/{I}_{\rm{background}})\). c The photon counts and intensity along a line across the center of the Tai Chi Symbol. The comparison of the experimental photon counts (red diamond), simulated intensity (blue dashed line), and ideal intensity (green line) for ECVMH (\(\left|{R}_{{\rm{TJ}}}\right\rangle \,\) and \(\left|{L}_{{\rm{TJ}}}\right\rangle\)) is shown by scanning a line across the center of Tai Chi Symbol, corresponding to \(|{L}_{s}\rangle\) and \(|{R}_{s}\rangle\) states, respectively. The upper left insets display the region scanned from left to right. d Multiple ECVMH results for pure and MM states incidence. The ECVMH acquired from pure (\({|R}_{s}\rangle\), \(|{V}_{s}\rangle\), and \(|L{P}_{150^{\circ} ,s}\rangle\)) and MM states when incident states are triggered to \(|{V}_{i}\rangle\) and MM states, respectively