Broadband Dielectric Mirror, Zerodur, 25.4 mm, 488-694 nm
Description
The 10Z40BD.1 Broadband Dielectric Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 1 inch (25.4 mm) diameter mirror is made from a 6.0 mm thick Zerodur substrate. Zerodur is a glass-ceramic material where thermal expansion is nominally zero. This extra stability can be critical for applications requiring diffraction limited performance. The BD-1 coating is extremely durable and will withstand repeated cleaning. This mirror has a λ/20 surface flatness and a 10-2 surface quality.
Technical Specs
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Wavelength Region
VIS
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Wavelength Range
488-694 nm
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Mirror Shape
Round
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Mirror Size
Ø25.4 mm
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Material
Zerodur®
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Coating Type
Broadband Dielectric
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Coating Code
BD.1
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Surface Quality
10-2 scratch-dig
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Surface Flatness
λ/20 at 632.8 nm
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Substrate Number
10Z40
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Angle of Incidence
0-45°
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Clear Aperture
≥central 80% of diameter
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S2 Surface
Ground
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Reflectivity
Rs (avg)>99%, Rp (ave)>98% @ 488-694 nm
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Damage Threshold
500 W/cm2 CW, 1 J/cm2 with 10 nsec pulses within the wavelength range, typical
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Thickness
6.0 mm
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Thickness Tolerance
±0.25 mm
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Diameter
25.4 mm
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Diameter Tolerance
+0/-0.13 mm
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Chamfers
0.25–0.76 mm face width
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Chamfers Angle Tolerance
45° ±15°
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Cleaning
Non-abrasive method, acetone or isopropyl alcoholon lens tissue recommended
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