Optical Mirrors Broadband Metallic Mirrors

Broadband Metallic Mirrors

Broadband metallic mirrors have a thin layer of a metal coating to provide an abrasion-resistant surface while maintaining performance. These are best suited for applications that required broadband reflection. Due to the oxidation property of silver, metallic mirrors are suitable in the low-humid environment. Wavelength Opto-Electronic offers Metal Mirrors in two protective coatings (Aluminium and Silver) with high surface quality and flatness.

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Part NumberWavelengthDimension (mm)Thickness (mm)MaterialReflectivity (%)
RFS-1-6.35-A450 nm - 20 µm25.46.35Fused Silica> 90% @ 450nm - 2µm
RFS-30-5-A450 nm - 20 µm30.05.00Fused Silica> 90% @ 450nm - 2µm
RFS-1.5-6.35-A450 nm - 20 µm38.16.35Fused Silica> 90% @ 450nm - 2µm
RFS-1.5-9.5-A450 nm - 20 µm38.19.50Fused Silica> 90% @ 450nm - 2µm
RFS-2-9.5-A450 nm - 20 µm50.89.50Fused Silica> 90% @ 450nm - 2µm
RFS-1-6.35-S450 nm - 20 µm25.46.35Fused Silica> 97% @ 450nm - 2µm
RFS-30-5-S450 nm - 20 µm30.05.00Fused Silica> 97% @ 450nm - 2µm
RFS-1.5-6.35-S450 nm - 20 µm38.16.35Fused Silica> 97% @ 450nm - 2µm
RFS-1.5-9.5-S450 nm - 20 µm38.19.50Fused Silica> 97% @ 450nm - 2µm
RFS-2-9.5-S450 nm - 20 µm50.89.50Fused Silica> 97% @ 450nm - 2µm

Metal Mirrors DiagramMetal Mirrors Diagram 2Material: BK7 or Fused Silica
Dimension Tolerance: +0.0/-0.2mm
Thickness Tolerance: ±0.2mm
Surface Quality: 20/10 S-D
Clear Aperture: >90%
Angle of Incidence: 45°
Flatness:  < λ/10 @ 632.8nm
Protected Aluminium: Ravg>90% @ 400nm-2µm
Protected Silver: Ravg>97% @ 400nm-2µm
Damage Threshold: >1 J/cm², 20ns, 20Hz, @1064nm

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