Figure 6: CHSH-Bell measurements.

(a) Normalized coincidence count rate as a function of the orientation of the hologram on SLM B. The hologram on SLM A was oriented at four different angles: 0 rad (blue curve), π/8 rad (yellow curve), π/4 rad (green curve) and 3π/8 rad (red curve). The measured count rates were normalized by the denominator in equation (5). The typical sinusoidal Bell curve was measured with the obstruction placed in the propagation path at 45 mm from the crystal. Examples of the binary Bessel holograms (|ℓ=±2›) used to perform a CHSH-inequality experiment are shown in the insets (b–e).