CaF2 Polarizer

Download IR Polarizers Datasheet (PDF, 552 KB)

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

CaF2 Polarizer

CaF2 Polarizer

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

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