Fig. 1. Schematic diagram of co-evaporation deposition technology

Fig. 2. Laser damage resistance of competition samples grouped by deposition method^[30]

Fig. 3. Schematic diagram of Co-IBS

Fig. 4. Absorption of coating materials. (a) Schematic diagram of SiO₂ full spectrum absorption^[3]; (b) light absorption mechanism for different bands

Fig. 5. Absorption measurement technology. (a) Schematic diagram of experimental setup and (b) measurement results of two-channel optical cavity ring-down technique^[42]; (c) schematic diagram of PCI experimental setup^[45]

Fig. 6. Defect centers and center wavelengths of absorption of fused silica^[48]

Fig. 7. Calculated band structures and total density of hafnium oxide with oxygen vacancy^[56]. (a)(b) Calculated band structures of hafnium oxide with V_O-III and V_O-IV (valence band edge is set at zero energy level, as displayed by dash lines); (c) total density of state (TDOS) of pure hafnium oxide and hafnium oxide with V_O-III and V_O-IV

Fig. 8. Multimaterial combination coating^[68]. (a) Schematic of multimaterial coating; (b) spectra of three coatings

Fig. 9. Schematic diagrams of HR coating stack^[69]. (a) Schematic of typical high-reflection coating stack of gravitational wave detector; (b) schematic of four-material coating

Fig. 10. Map of absorption of Ti doped Ta₂O₅ coating measured over 120 mm diameter^[47]