Figure 5

Diffraction pattern of a plane wave from an SLM at \(z=350\,{\rm{cm}}\) when a 1D linear phase grating with a sinusoidal profile in the x direction and a period of 0.11 mm is imposed on the SLM. Here \(\gamma =\pi /2\). This pattern corresponds to the (0,0) diffraction order of the SLM and was formed on a diffuser and imaged by camera.