Anti-Reflection (AR) coating is one of widely used optical thin-film coatings that can be applied to the surfaces of optical elements to reduce reflection and to improve transmittance within some spectral region.
Ecoptik provides AR coatings with appropriate materials and optimized configuration on a substrate material specified by the customer, with specified transmittance and a specified wavelength region.
Anti-Reflection (AR) coating is one of the widely used optical thin-film coatings that can be applied to the surfaces of optical elements to reduce reflection and to improve transmittance within some spectral regions.
Ecoptik (also known as BRD Optical) provides AR coatings with appropriate materials and optimized configuration on a substrate material specified by the customer, with specified transmittance and a specified wavelength region.
A single wavelength AR Coating can be made non-reflective only at one wavelength, usually at the middle of the visible. Multiple layers are more effective over the entire visible spectrum.
Substrate: Fused silica, BK7, etc.
Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40/20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric multi-layers
AOI: 0°/ 45°
Clear Aperture: > 85% of diameter
| Wavelength (nm) | Reflectance |
| 193 | <0.5% |
| 284 | <0.5% |
| 355 | <0.2% |
| 632.8 | <0.2% |
| 670 | <0.2% |
| 780 | <0.2% |
| 808 | <0.2% |
| 980 | <0.2% |
| 1030 | <0.2% |
| 1053 | <0.2% |
| 1064 | <0.2% |
| 1310 | <0.15% |
| 1550 | <0.15% |
Other wavelengths, AOI and dimensions available upon request
Dual Wavelength AR Coatings is designed to provide high transmission at two different wavelength. They are useful for optics which must transmit a visible alignment laser as well as a UV or near IR process beam. It is also useful for transmission of fundamental and first harmonic wavelengths.
Substrate: Fused silica, BK7, etc.
Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40/20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric multi-layers
AOI: 0°/ 45°
Clear Aperture: > 85% of diameter
| Wavelength (nm) | Reflectance |
| 166/532 | 0.5%/0.3% |
| 351/1053 | 0.5%/0.3% |
| 373/745 | 0.5%/0.3% |
| 532/1064 | 0.5%/0.3% |
| 1064/1535 | 0.5%/0.3% |
| 792/2060 | 0.5%/0.3% |
These coatings have excellent performance over a broad spectral range broadband. Coating performance is sensitive to angle of incidence. Broadband Multilayer Anti Reflection coatings substantially reduce surface reflectance over a broad spectral region.
Substrate: Fused silica, BK7, etc.
Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40/20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric multi-layers
AOI: 0°/ 45°
Clear Aperture: > 85% of diameter
| Range of Wavelength | Reflectance |
| 350-650 | <0.5% |
| 420-670 | <0.5% |
| 650-1050 | <0.5% |
| 1050-1550 | <0.5% |
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