Key points are not available for this paper at this time.
Devices for manipulating spin-polarized light in t0{0ex}r0{0ex}a0{0ex}n0{0ex}s0{0ex}m0{0ex}i0{0ex}s0{0ex}s0{0ex}i0{0ex}o0{0ex}n (not reflection) mode are highly desired in photonics research. To this end, the authors craft a Pancharatnam-Berry metasurface of subwavelength thickness /8 with a 91% efficient photonic spin Hall effect, at microwave frequencies. Key to this result is the magnetic response of the constituent meta-atoms. These findings open up the control of spin-polarized light using spin-dependent metaholograms, polarization modulators, or chirality-controlled surface-plasmon couplers, for example.
Luo et al. (Fri,) studied this question.