UV Beamsplitter, 12.5 mm Diameter, 2.00 mm Thickness, 30R/70T ratio
UV Beamsplitter, 12.5 mm Diameter, 2.00 mm Thickness, 30R/70T ratio
Model: UVBS11-2
6 Weeks
Product Series Overview
UV Plate BeamsplittersThe UVBS11-2 UV Beamspliter is a 12.5 mm diameter, 2.0 mm thick UV Fused Silica beamsplitter with 30/70 reflection/transmission ratio optimized for 45° angle of incidence. This beamsplitter is designed for UV applications covering spectral range from 250 nm to 450 nm, featuring low absorption and excellent thermal stability. The back surface of the beamsplitter has a wedge that is less than 5 arc minutes to reduce undesired interference effects caused by the back reflections from both surfaces of the optics.
Specifications
- Wavelength Range250-450 nm
- Diameter12.5 mm
- MaterialUV Grade Fused Silica
- Coating Second SurfaceAR (Ravg <1%, Rabs <2%)
- Angle of Incidence45°±3°
- ReflectionRabs = 30 ±5% @ 350 nm, Ravg = 30 ±10% @ 250-450 nm
- TransmissionTabs = 70 ±5% @ 350 nm, Tavg = 70 ±10% @ 250-450 nm
- Surface Flatness≤1 λ at 632.8 nm over the clear aperture
- Surface Quality60-40 scratch-dig
- Diameter Tolerance+0.0/-0.2 mm
- Thickness2.0 mm
- Thickness Tolerance±0.38 mm
- Parallelism< 5 arc minutes
- Clear Aperture> central 85% of diameter
- Chamfers Angle Tolerance45° ±15°
- Cleaning
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