ewster angle polarizers
These plate polarizers are intended for use at the Brewster angle of incidence. The natural polarization which takes place at this angle is enhanced by the deposition of a coating to separate the s and p peak transmittance. They provide a high extinction ratio of 200: 1 and are suitable for high power use.
| Substrate: | BK7A UV grade Fused Silica IR grade CaF2 |
| Surface Quality: | 10/5 for BK7A & UV grade Fused Silica 20/10 for IR grade CaF2 |
| Surface Flatness: | < λ / 10 @ 633 nm |
| Wedge: | < 3 arc min |
| AR Coating: | R < 0.25% |
| Absorption: | Negligible |
| Dimension Tolerance: | < + 0.00 / – 0.20 mm |
| Clear Aperture: | > 85% of central diameter |
High Power Thin Film Plate Polarizers (HPPB/PPB)
| Dimension | 1.0" dia x 0.25" t, 2.0" dia x 0.375" t, 28.6mm x 14.3mm x 3.0mm t |
|---|---|
| Material | UV Grade Fused Silica, BK7 Grade A, IR Grade CaF2 |
| Wavelength | 248 nm, 266 nm, 308 nm, 355 nm, 532 nm, 694 nm, 1064 nm, 1550 nm, 2100 nm, 2940 nm |
Precision Linear Plates (PLP/PLPM) 
