Narrowband Anti-Reflection (NAR)
193 nm ≤ λ ≤ 400 nm
Narrowband Anti-Reflection coatings, often referred to as "V" coatings, substantially reduce surface reflectance at the specified center wavelength. 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: |
0º or 45º |
Reflectance:
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Unpolarized |
λ > 222 nm:
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R ≤ 0.25% at 0º
R ≤ 0.5% at 45º
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| λ ≤ 222 nm: |
R ≤ 1.0% at 0º
R ≤ 1.5% at 45º
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Damage Threshold:
λ > 248 nm:
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1.5 J/cm², 10ns pulse
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λ > 355 nm: |
5 J/cm², 10 ns pulse (UVFS) |
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Narrowband Anti-Reflection reflectance curve example centered at 266 nm. 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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