Fig. 2
From: Broadband terahertz holography using isotropic VO2 metasurfaces
(a) A three-dimensional view of a \(\:2\times\:2\) array of meta-atoms, showcasing antenna parameters for two sets of antennas within two MIM cavities. The square VO2 antennas have widths of w1 = 12.0 μm, w2 = 45.5 μm, w3 = 51.6 μm, and w4 = 74.0 μm, while dimensions of the cross-shaped gold antenna with an aspect ratio of 5:1 are given as l1 = 5.0 μm, l2 = 29.8 μm, l3 = 34.6 μm, and l4 = 45.0 μm. (b) The side view of the designed meta-atom, which is segmented into six components in two MIM structures.
