Precision anti-reflective coatings designed for standard laser wavelengths. These coatings minimize reflection at a specific wavelength while maintaining high laser damage resistance.
Reflectance: < 0.2% at target wavelength
High LIDT (pulsed and CW lasers)
Applications include laser optics, nonlinear crystals, and beam delivery systems.
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General Parameters: |
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Coating Function |
AR |
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Design Wavelength (λ) |
1064 nm |
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Angle of Incidence (AOI) |
0° |
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Polarization |
Unpolarized |
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Operating Temperature |
-40°C to +85°C |
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Substrate: |
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Material |
Fused Silica |
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Refractive Index (nd) |
1,458 |
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Dimensions |
d25.4 |
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Surface Flatness |
λ/10 @ 632.8 nm |
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Surface Quality |
10–5 (Scratch–Dig, MIL-PRF-13830B) |
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Parallelism |
< 5 arcmin |
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Surface Roughness (pre-coating) |
Ra ≤ 1 Å |
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Clear Aperture |
≥ 90% of diameter or custom |
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Coating Properties: |
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Coating on Front Side |
AR |
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Laser Damage Threshold (LIDT) |
14.4J/cm^2; 1064nm; 10ns; 100Hz; 220um |
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Optical Performance: |
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Reflectance (R) |
Ra< 0.05% |
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Mechanical and Environmental: |
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Thermal Stability |
–40 °C to +85 °C (no degradation) (MIL-C-48497A, ISO 9022-2) |
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Humidity Resistance |
24 h @ 95% RH, 40 °C (MIL-C-48497A, ISO 9211-3) |
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Abrasion Resistance |
Moderate abrasion (MIL-C-48497A, ISO 9211-4, ASTM D1044) |
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Adhesion |
Tape test, no peeling (MIL-C-48497A, ISO 9211-4, ASTM D3359) |
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Temperature Cycling |
–40 °C to +85 °C, 10 cycles (MIL-STD-810H, ISO 9022-2) |
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Chemical Resistance |
Acetone, IPA, no delamination (MIL-C-48497A, ISO 9022-5, ISO 9211-4) |