BaF2 Polarizer

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Substrate material BaF2
Spectral range, mm 1,5 - 12
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 1200
Transmission efficiency K1 (average), % >70
Transmission of unwanted radiation K2, % 1-2 @ 2 mm
<0.1 @ 11mm
Degree of polarization (K1-K2)/(K1+K2), % 94-97 @ 2 mm
>99 @ 11 mm
Extinction ratio E=K1/(2*K2) 15-35 @ 2 mm
350 @ 11 mm

 Transmission efficiency K1

Transmission of unwanted radiation K2

Degree of polarization P

 

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