Fig. 1. Schematic of parabolic cone periodic microstructure

Fig. 2. Schematic of FDTD solutions simulation

Fig. 3. Variations of transmittance with wavelength at different periods of microstructure

Fig. 4. Variations of transmittance with wavelength at different d/T values

Fig. 5. Variations of transmittance with wavelength at different heights of microstructure

Fig. 6. Comparison of transmittance between microstructure and composite structure

Fig. 7. Flow chart of fabrication procedure of composite structure

Fig. 8. Scanning electron microscopy images of structure. (a) Top view of microstructure; (b) profile 45° of microstructure; (c) top view of composite structure; (d) profile 45° of composite structure

Fig. 9. Transmittance curves for component #1 with different surface states

Fig. 10. Transmittance curves for component #2 before and after high-low temperature cycle experiment