Figure | Conceptual schematic of white light skyrmions generation from a single dome-shaped ferroelectric spherulite. (IMAGE)
Caption
Figure | Conceptual schematic of white light skyrmions generation from a single dome-shaped ferroelectric spherulite. a, Generation schematics of white light skyrmions from one single ferroelectric spherulite. The dome-shaped spherulite was consisted of azimuthally oriented rodlike polar molecules of the uniaxial anisotropy, showing the rotation symmetry in both geometry and optical properties. The input beam of right circular polarization experienced spin-orbital coupling and was subsequently focused by the dome-shaped ferroelectric spherulite to form Stokes skyrmionic topologies in the far field. In the case of white light incidence, skyrmionic topologies were formed at each wavelength, taking red skyrmions, green skyrmions, and blue skyrmions as examples. Inset: scanning electron microscope image of the fabricated spherulite. The scalebar of the scanning electron microscope image is 5 mm. b, Texture and synthesis of white light optical skyrmions. The left circular polarization with LG0,-2 mode and right circular polarization with LG0,0 mode were robustly formed in the far field due to the spin-orbital coupling effects in the case of right circular polarization incidence. Mapping such Stokes distribution to a Poincaré sphere, it exhibits the topological feature of a quasi-particle. Bottom panel in (b): the colour (lightness) represents the phase (intensity) of the complex fields of the left circular polarization and right circular polarization. In (a) and the top panel of (b), the hue of the vector arrows represents different in-plane components of the Stokes vectors, and the lightness of the vector arrows corresponds to out-of-plane components of the Stokes vectors. Amp., amplitude.
Credit
Jingbo Sun et al.
Usage Restrictions
Credit must be given to the creator.
License
CC BY