Fig. 2: The principle of on-chip metasurface for Jones matrix modulation.
From: On-chip multifunctional metasurfaces with full-parametric multiplexed Jones matrix
a The schematic diagram of one nanopillar for Jones matrix modulation driven by guided waves along y (blue) and x (magenta) directions. The simulated detour phase ϕD and geometric phase ϕPB induced by (b) in-plane displacement δx, δy and c rotation angle θ of nanopillar. The solid lines represent the fitting lines. d The top view of the four-element supercell composed of m1, m2, m3 and m4 based on detour phase and geometric phase with period of 2Px and 2Py. e, f The phase responses ϕx and ϕy as a function of the length and width of nanopillar under guided waves propagating along y and x directions. g The illustration of the four-element supercell based on detour phase, geometric phase and propagation phase.
