SUBSTRATE
Material | BK7 grade A glass or UV grade fused silica |
S1 Surface Flatness | λ/10 typical at 633 nm |
S1 Surface Quality | 20-10 scratch & dig (MIL-PRF-13830B) |
S2 Surface Quality | Commercial polish |
Diameter Tolerance | + 0.00 mm, - 0.12 mm |
Thickness Tolerance | ± 0.25 mm |
Wedge | < 3 minutes |
Chamfer | 0.3 mm at 45° typical |
COATING
Technology | Electron beam multilayer dielectric or Ion Beam Sputtering |
Adhesion and Durability | Per MIL-C-675A. Insoluble in lab solvents |
Clear Aperture | Exceeds central 85% of diameter |
Damage Threshold | 1 J/cm2, 8 nsec pulse, 1064 nm typical |
Coated Surface Flatness | λ/10 at 633 nm over 85% of diameter available |
Angle of incidence | 0° or 45° |
EKSMA Optics Broadband Laser Mirrors
206.77 kB |
Broadband dielectric mirrors provide an optimised broadband performance at stated wavelength ranges. Broadband laser mirrors are designed for applications using Ti:Sapphire, dye, diode and YAG lasers.
The achieved high polishing quality is important for low wave front distortion, low scattering and high damage threshold.