Fig. 2: Schematic diagram of our binocular metalens system, showing its design, fabrication, and optical properties.
From: High-precision three-dimensional imaging based on binocular meta-lens and optical clue fusion
(a) The schematic diagram of the meta-atom features a cylindrical GaN structure positioned on a sapphire substrate. (b) Optical characteristics of the meta-atom: the red curve shows the phase variation with respect to the diameter, while the purple curve shows the efficiency variation for the diameter. (c) Photograph of the fabricated binocular meta-lens. (d) SEM image of the meta-lens (scale bar: 1 μm). (e) Zoomed-in SEM image of the meta-lens (scale bar: 1 μm). (f) Optical scanning focusing profile results for the left and right eyes meta-lenses. (g) Schematic of the binocular meta-lens integrated with a CMOS sensor. (h) Raw single-shot image captured by the binocular system, simultaneously displaying left and right views.
