| Substrate material |
CaF2 |
| Spectral range, mm |
1 - 9 |
| Typical operation aperture, mm |
25 x 25 |
| Standard holder size at typical aperture, mm |
D42 x 8 |
| Maximal operation aperture, mm |
50 x 50/D 50 |
| Grooves per mm |
2400 |
| Transmission efficiency K1 (average), % |
>70 |
| Transmission of unwanted radiation K2, % |
1-2 @ 1.5 mm <0.5 @ 2 mm <0.1 @ 3-9 mm |
| Degree of polarization (K1-K2)/(K1+K2), % |
94-97 @ 1.5 mm >98 @ 2 mm >99 @ 3-9 mm |
| Extinction ratio E=K1/(2*K2) |
15-35 @ 1.5 mm 70 @ 2 mm 350 @ 3-9 mm |
|



Standard items can be ordered from our stock. The polarizers with non-standard sizes, shape and operational wavelength region are available on request.