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HR Coatings
Coating
HR Coatings
The characteristic of a high-reflection film is that it has a very high reflectivity in a certain special wavelength band. There are two types of high-reflection films: dielectric high-reflection film..
Product description
The characteristic of a high-reflection film is that it has a very high reflectivity in a certain special wavelength band. There are two types of high-reflection films: dielectric high-reflection films and metal high-reflection films. A dielectric high-reflection film is composed of many layers of insulating dielectric materials. The polarization of this film system is very small, and the reflectivity can be very high. The coating of a metal high-reflection film is made of gold, silver or aluminum, and the surface presents a special color.
High-Reflection Film
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Substrate Material
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Wavelength
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Reflectivity Requirement
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Reflectivity Flatness
|
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pigtail
|
1064 ± 20nm
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R > 99.5%
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Rmax - Rmin < 0.1%
|
|
G/C-lens
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1064 ± 20nm
|
R > 99.5%
|
Rmax - Rmin < 0.1%
|
|
H-K9L
|
355/532/1064 ± 20nm
|
R > 99.2%
|
Rmax - Rmin < 0.1%
|
|
Fused Quartz
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355/532/1064 ± 20nm
|
R > 99.2%
|
Rmax - Rmin < 0.1%
|
Double-Wavelength High-Reflection Film
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Substrate Material
|
Wavelength
|
Reflectivity Requirement
|
|
pigtail
|
980 ± 20nm & 1550 ± 20nm
|
R > 99.5%
|
|
G/C-lens
|
980 ± 20nm & 1550 ± 20nm
|
R > 99.5%
|
|
H-K9L
|
980 ± 20nm & 1550 ± 20nm
|
R > 99.5%
|
|
Fused Quartz
|
980 ± 20nm & 1550 ± 20nm
|
R > 99.5%
|
