Polarization Control in Terahertz Metasurfaces with the Lowest Order Rotational Symmetry

1 wileyonlinelibrary.com C O M M U N IC A IO N with specifi c symmetry to control the polarization state of the incoming light. Owing to the 2D feature of metasurfaces, we could degenerate the tensor χ from complex 3 × 3 matrix to 2 × 2 matrix. [ 10 ] The transmission response through a metasurface can be described by transmittance, polarization ellipses, averaged polarization rotation, and polarization conversion, [ 22–25 ] which can easily be determined from the frequencydependent 2 × 2 Jones matrix. [ 26,27 ]