Figure 4: Motion pictures played by polarization rotation angle.
From: Flexible coherent control of plasmonic spin-Hall effect
(a) The scheme of Motion pictures, which is consisted by N pixels. Polarization-selective angle ξi increases along the path of pixels. (b) SEM image of fabricated sample of moving letter ‘b’, (with φmax=120° and ring radii from 13.3λSP to 16.7λSP). Scale bars, 10 μm in b. (c–l) Are the simulated 
and measured intensity profiles with varying φ from 0° to 120° (white arrows). The colour scales of SPP patterns with different incident polarization angle are the same.
