Fig. 1. Schematics of absorber. (a) Absorber array; (b) structure schematic of absorber unit cell; (c) top view of absorber unit cell; (d) schematic of preparation process of absorber

Fig. 2. Absorptivity and average absorptivity of absorber with different structures. (a) Absorptivity; (b) average absorptivity

Fig. 3. Effects of polarization angle and incident angle on absorption spectrum. (a) Effect of polarization angle; (b) effect of incident angle

Fig. 4. Relative impedance for different structures. (a) MSA; (b) structure without cross; (b) structure without Ti/GaAs/Ti layer

Fig. 5. Electric field intensity |E| distributions of planes x and y under different wavelengths. (a) λ＝360 nm, plane z; (b) λ＝720 nm, plane z; (c) λ＝3440 nm, plane z; (d) λ＝360 nm, plane x; (e) λ＝720 nm, plane x; (f) λ＝3440 nm, plane x

Fig. 6. Electric field intensity distributions of plane z at different wavelengths. (a) λ＝600 nm; (b) λ＝650 nm; (c) λ＝700 nm

Fig. 7. Electric field intensity and magnetic field intensity distributions at different wavelengths. (a) Electric field intensity, λ＝360 nm; (b) electric field intensity, λ＝720 nm; (c) electric field intensity, λ＝3440 nm; (d) magnetic field intensity, λ＝360 nm; (e) magnetic field intensity, λ＝720 nm; (f) magnetic field intensity, λ＝3440 nm

Fig. 8. Absorption spectra and relative impedance for different structures. (a) Absorption spectra; (b) relative impedance

Fig. 9. Influences of T₂ values on absorptivity and average absorptivity. (a) Influence on absorptivity; (b) influence on average absorptivity

Fig. 10. Influences of period p values on absorptivity and average absorptivity. (a) Influence on absorptivity; (b) influence on average absorptivity