Fig. 3: Experimental demonstration of full-parametric modulation of Jones matrix.
From: On-chip multifunctional metasurfaces with full-parametric multiplexed Jones matrix

a Optical microscope image of the fabricated silicon metasurface surrounded by four grating couplers (only three shown) on LNOI substrate. Scale bar: 200 μm. GC: grating coupler. MS: metasurface. b Scanning electron microscope image of the on-chip metasurface. The green dashed box outlines one supercell. Scale bar: 1 μm. c Measured four sets of nano-printing and holographic images related to four elements of Jones matrix Jxx, Jxy, Jyx and Jyy. The white arrows in the bottom left and right corner indicate the polarization states of input guided waves and output analyzers, respectively.