ZnSe Polarizer

Download IR Polarizers Datasheet (PDF, 552 KB)

Substrate material	ZnSe
Spectral range, mm	1.5-14
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), %	65 -70 (back side AR coated) >50 (uncoated)
Transmission of unwanted radiation K2, %	1-2 @ 2 mm <0.1 @ 10 mm
Degree of polarization (K1-K2)/(K1+K2), %	94 - 97 @ 2 mm (AR coated) 92 - 96 @ 2 mm (uncoated) >99 @ 10 mm
Extinction ratio E=K1/(2*K2)	15-35 @ 2 mm 325 - 350 @ 10 mm (AR coated) 10 -25 @ 2 mm 250 @ 10 mm (uncoated)

The spectral curves of AR-coated ZnSe polarizer are below

AR-coated ZnSe polarizers

AR-coated ZnSe 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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