IR Narrowband Anti-Reflection (NAR)
2.0 µm ≤ λ ≤ 20.0 µm
Narrowband Anti-Reflection coatings, often referred to as "V" coatings, reduce surface reflectance to less than 0.5% at the specified center wavelength and normal incidence. These all dielectric coatings are sensitive to polarization, wavelength and angle of incidence. They are durable and highly resistant to laser damage.
RMI STANDARD SPECIFICATIONS
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Angle of Incidence:
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0º or 45º
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Reflectance:
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Unpolarized
R ≤ 0.5% at 0º
R ≤ 1.0% at 45º
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Damage Threshold:
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λ > 10.6 µm:
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2 J/cm², 10 ns pulse
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Narrowband Anti-Reflection coating sample reflectance curve for the CO2 laser wavelength of 10.6 μm. The curve represents a general shape for this coating. RMI will design a custom coating for your application. Please call (303) 664-5000 to discuss your coating requirements.
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