High Efficiency Anti-Reflective Infrared Coatings

 We offer both standard and custom solutions
Spectral Regions
Spectral Ranges
Common Substrate Materials


0.9 to 2.7µ

  • Glasses
  • Sapphire
  • Zinc Selenide
  • Zinc Sulfide
  • Calcium Fluoride

3.0 to 5.0µ

  • Silicon
  • Germanium
  • Sapphire
  • Zinc Selenide
  • Zinc Sulfide
  • Calcium Fluoride
  • Various Chalcogenides


7.0 to 14.0µ

  • Germanium
  • Zinc Selenide
  • Zinc Sulfide
  • Various Chalcogenides



3.0 to 14.0µ

  • Germanium
  • Zinc Selenide
  • Zinc Sulfide – MS
  • Silicon
  • Various Chalcogenides
 Spectral Performance (8-12µ)
Average Reflection ≤ 0.3% per Surface

Near Normal Angle of Incidence

Transmission average ≥ 98.0%

Coating Durability
  • Adhesion: Tape Pull
  • Moderate Abrasion
  • Humidity 24 Hours
  • Temperature Cycle

Diamond-Like Carbon (DLC) Coatings


  • Spectral region: 8.0 to 11.5µ (0° to 20° AOI)
    • Transmission: ≥ 90% avg.
  • Spectral region: 8.0 to 12.0µ (0° to 20° AOI)
    • Transmission: ≥ 88% avg.

Quality Requirements:

  • Adhesion: Per MIL-M-13508C para 4.4.6 (fast pull)
  • Abrasion: Per MIL-C-675C para 4.5.10. (severe abrasion 40 strokes)
  • Humidity: Per MIL-C-675C para 4.5.8.  (min 24 hours)
  • Solubility: Per MIL-C-675C para 4.5.7 (Immersion for period of 24 hours in water/salt)
  • Salt Spray: Per MIL-C-675C para 4.5.9. (Salt spray-fog test for a continuous period of 24 hours)
  • Temperature Cycle: Per MIL-M-13508C para 4.4.4.
  • Windscreen Wiper: Coating shall show no signs of removal when exposed to 5,000 revolutions sand/slurry mixture

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