Rocky Mountain Instrument Co.
1.303.664.5000
 

Optical Coatings:

Developed in conjunction with Ext-Joom.com

Metal Mirrors » Enhanced Silver

 

Enhanced Silver is comprised of silver overcoated with a multilayer dielectric film that is designed to optimize reflectance at a specific wavelength. The enhancing layer also greatly improves durability, meeting MIL SPEC requirements.

This coating is sensitive to wavelength, angle of incidence and polarization.

Enhanced Silver is used to enhance the reflectivity of Bare Silver, most commonly in the visible region. At 532nm, Bare Silver will deliver about 98% reflectivity. Using Enhanced Silver at the same wavelength will deliver reflectivity of about 99.5%.

Reflectance values can be optimized further by adding more layers to the enhancing overcoat. This option is available upon request.

RMI Standard Specifications  
λ (μm)  %R, 0º  %R, 45º U 
0.442 97.8 97.5
0.488 97.8 97.5
0.515 98.4 98.1
0.532 98.5 98.2
0.633 98.7 98.4
0.647 98.8 98.5
0.670 98.8 98.5
0.694 98.9 98.6
0.780 99.0 98.7
0.830 99.0 98.7
0.850 99.0 98.7
1.047 98.9 98.6
1.053 98.9 98.6
1.064 98.9 98.6
1.319 98.9 98.8
1.550 98.9 98.6
2.06 99.2 98.9
2.10
99.2 98.9
2.94 99.2 98.9
5.00 99.3 99.0
10.6 99.5 99.2