An aberration-corrected single layer metasurface with large field of view

With superior capabilities for light manipulation and wavefront shaping, the metasurface facilities the realization of the next generation diffractive optical elements, and thus it has caught growing attention. A key problem, especially in imaging and display fields, is the correction of the aberrations introducing by the incidence with large field of view. Here, we design a focusing metalens working a wavelength of 0.705μm by patterning single layer metasurface on one side of a substrate. By adding a correcting phase, the metalens can achieve diffraction-limited focusing along the focal plane with the field of view of 90° and possess an excellent capability of imaging performance. The possibilities of our designed metalens offers unprecedented opportunities for microscopes, lithography machines, sensors, and displays.