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Location: Main > Optical Mirrors > Broadband Dielectric Mirrors > PBB-R02-20A
Name: DIA50.8xT4.0mm HR@400-900nm Dielectric Mirror
P/N: PBB-R02-20A
Keywords:Dia50.8xT4.0mm,UVFS,HR@400-900nm,0-45 deg
Unit Price: S$220.00/pc
Available: In stock
Request: Add to Request List
Introduction:
PHOTONIK BRAND Broadband Dielectric Mirrors offer excellent reflectivity of R>99% for 400-900nm spectrum.
A dielectric mirror is a type of a mirror composed of multiple thin layers of dielectric material, typically deposited on a substrate of glass or some other optical material. By careful choice of the type and thickness of the dielectric layers, one can design an optical coating with specified reflectivity at different wavelengths of light. Dielectric mirrors are also used to produce ultra-high reflectivity mirrors: values of 99.999% or better over a narrow range of wavelengths can be produced using special techniques.
Alternatively, they can be made to reflect a broad spectrum of light, such as the entire visible range or the spectrum of the Ti-sapphire laser. Mirrors of this type are very common in optics experiments, due to improved techniques that allow inexpensive manufacture of high-quality mirrors. Examples of their applications include laser cavity end mirrors, hot and cold mirrors, thin-film beamsplitters, and the coatings on modern mirrorshades.

Substrate Material:
UV Fused Silica
Outer Diameter:
50.8,-0.2/+0.0mm
Thickness:
4.0,+/-0.1mm
Flatness:
<Lambda/10@633nm over every 25mm area on-jig tested
Surface Quality:
20-10 S/D
Front Surface:
R>99.5% for S and P polarization
for angles of incidence from 0-deg to 45-deg
at 400-900nm typical (400-900nm minimum range)
Back Surface:
Fine polished, 20-10 S/D, uncoated
Clear Apeture:
>90% of outer diameter
Laser Damage Threshold:
2kW/cm2 CW,100mJ/cm2 10ns pulse
Edge Surface: 0.3mmx45deg protection chamfer