Figure 1 | Design principles of 3D vectorial holography by longitudinally tunable beam arrays. (IMAGE)
Caption
Figure 1 | Design principles of 3D vectorial holography by longitudinally tunable beam arrays. a Schematic of the 3D vectorial holography using a z-dependent array of structured beams, with independently controlled axial intensity and polarization profiles. b Construction of the target longitudinal response function, composed of the axial intensity envelope and polarization trajectory. c Modulation strategy based on a superposition of 2N + 1 Bessel functions with uniform spacing in kz-space. d Schematic of the metasurface architecture. e Top-view schematic of the dual-matrix holographic metasurface design. f Optical photographs and SEM images (Top and tilted views) of the fabricated metasurfaces.
Credit
Ting Xu et al.
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CC BY