Neutral Broadband Cube Beamsplitter (NBCB)

- All Metal Coating
- Extreme broadband Single Layer MgF2 coating in all legs
- Absorption = 45% +/- 5%
- Spectral range : 350-2100nm
These all-metal coatings both absorb and reflect the incident radiation. These beamsplitters have high absorption and high neutrality over a range covering the visible and near infra-red. R and T are about 27% with 45% absorption.
Substrate: |
BK7A |
Surface Flatness: |
< λ / 8 @ 633 nm |
Surface Quality: |
<20/10 |
Beam Deviation: |
< 3 arc min |
Dimension Tolerance: |
< + 0.00 / -0.20 mm |
AR Coating: |
Single layer MgF2 coating |
T & R average values: |
27% ± 3% |
Clear Aperture: |
> 85% of central circular dimension |
Spectral Range: |
350 nm to 2100 nm |
Temperature Range: |
– 50° C to 80° C |
Absorption: |
45% ± 5% |
Neutral Broadband Cube Beamsplitter (NBCB)