Figure 1
From: Optimized polarization-independent Chand-Bali nano-antenna for thermal IR energy harvesting

The proposed Chand-Bali nano-antenna structure: (a) 3D isometric view; (b) top view showing the design parameters of the three ellipses A, B, and C; and (c) cross-sectional view of the Chand-Bali nano-antenna showing the metal–insulator–metal (MIM) 3-layers whose thicknesses are design parameters.