The 20D20BD.1 Broadband Dielectric Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 2 inch (50.8 mm) diameter mirror is made from a 12.7 mm thick Borofloat® 33 substrate. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The BD-1 coating is extremely durable and will withstand repeated cleaning. This mirror has a &lambda,/10 surface flatness and a 15-5 surface quality.
Технические характеристики
- Wavelength Region VIS
- Wavelength Range 488-694 nm
- Mirror Shape Round
- Diameter 50.8 mm
- Mirror Size Ø50.8 mm
- Thickness 12.7 mm
- Material Borofloat® 33
- Coating Type Broadband Dielectric
- Coating Code BD.1
- Surface Quality 15-5 scratch-dig
- Surface Flatness &lambda,/10 at 632.8 nm
- Substrate Number 20D20
- Angle of Incidence 0-45°
- Clear Aperture &ge,central 80% of diameter
- Back Surface Ground
- Reflectivity Rs (avg)>99%, Rp (ave)>98% @ 488-694 nm
- Damage Threshold 500 W/cm² CW, 3 J/cm², 10 ns pulses, 10 Hz, at 532 nm
- Diameter Tolerance +0/-0.13 mm
- Thickness Tolerance ±0.25 mm
- Chamfers 0.38–1.14 mm face width
- Chamfers Angle Tolerance 45° ±15°
- Cleaning See How to Clean Optics
