Fig. 1. Structure of the optical solar reflector. (a) Array graph; (b) Top view of individual unit; (c) Side view of individual unit

Fig. 2. Spectral absorption of OSR on the AZO metasurface and blackbody radiation density distributions at 300 K and 5777 K

Fig. 3. Spectral absorption curves of OSR for the AZO metasurface period p of 1.1 µm, 1.3 µm, and 1.5 µm, respectively

Fig. 4. Electric field distributions of OSR at different feature scales for AZO metasurfaces

Fig. 5. Absorption spectra of the structure at dimensions of l = 1.1 µm, 1.2 µm, 1.25 µm, and 1.3 µm, respectively

Fig. 6. Absorption spectra of dielectric-layer thicknesses of 1.2 µm, 1.4 µm, 1.6 µm, and 1.8 µm, respectively

Fig. 7. Absorption spectra corresponding to TE polarization and TM polarization at normal incidence

Fig. 8. Absorption spectra at different angles of incidence for TE polarization

Fig. 9. Absorption spectra at different angles of incidence for TM polarization