Glass Dynamics, LLC Resource Development Experts. |
Narrowband (AR) Coating:
Narrow band, Anti-reflective coatings are commonly called a "V" coating because of its spectral shape, narrowband AR coatings are the simplest of the multilayer coatings and are used whenever the application involves a single wavelength. A "V" coating usually achieves reflectivity of <0.25% at the design wavelength.
Narrow band AR coating provides 50% reflection and transmission at an angle of 45° incidence for a single wavelength. This coating is perfect for a beamsplitter application. Transmission/Reflection (T/R) ratio is 20/80.
Transmission comparison of Coated and uncoated BK-7 Glass
Reflectivity (per surface) | <0.25% at design wavelength |
Practical Bandwidth | Usually 12% of the design wavelength |
Wavelength Range | 400 nm to 1500 nm |
Durability | Per MIL-C-48497A |
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