Research / 2019 / Article / Fig 4

Research Article

Encoding and Multiplexing of 2D Images with Orbital Angular Momentum Beams and the Use for Multiview Color Displays

Figure 4

Verification of the integrity of a light beam encoded by different OAM modes on a 2D plane. (a) Shift-invariance demonstrated by intensity profiles recorded at the imaging plane. (b) Shift-invariance validated for different modes: (b1) point encoded at the same polar angle θ but a different displacement δ and (b2) the same displacement δ but a different polar angle θ.