Fig. 1. Unit structure diagram of ultraviolet absorber

Fig. 2. Optical properties of BSTS permittivity

Fig. 3. Optical properties of SiO₂ permittivity

Fig. 4. Tripartite diagram of absorption, reflectance, and transmittance of an absorber when the angle of incidence is 0°

Fig. 5. Variation of absorptivity with incident wavelength and angle

Fig. 6. Normalized magnetic field intensity distributions at different wavelengths when incident angle is 0°. (a) 210 nm；(b) 250 nm; (c) 320 nm; (d) 360 nm

Fig. 7. Partially enlarged normalized magnetic field intensity distributions at different wavelengths when incident angle is 0°. (a) 210 nm; (b) 250 nm; (c) 320 nm; (d) 360 nm

Fig. 8. Absorptivity versus wavelength with only changing W and normalized magnetic field intensity distributions at wavelength of 260 nm when incident angle is 0°

Fig. 9. Absorptivity versus wavelength with only changing t₁ and normalized magnetic field intensity distributions at wavelength of 268 nm when incident angle is 0°

Fig. 10. Absorptivity versus wavelength with only changing t₂ and normalized magnetic field intensity distributions at wavelength of 268 nm when incident angle is 0°

Fig. 11. Absorptivity versus wavelength with only changing h_min and normalized magnetic field intensity distributions at wavelength of 234 nm when incident angle is 0°

Fig. 12. Absorptivity versus wavelength with only changing h_max and normalized magnetic field intensity distributions at wavelength of 220 nm when incident angle is 0°

Fig. 13. Absorptivity versus wavelength with only changing N and normalized magnetic field intensity distributions at wavelength of 272 nm when incident angle is 0°