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• --Standard Infrared Polarizers-- GS57001 - KRS-5 unmounted GS57010 - KRS-5 25 mm CA mounted GS57012 - KRS-5 38 mm CA mounted GS57014 - KRS-5 50 mm CA mounted GS57003 - Ge unmounted GS57070 - Ge 25 mm CA mounted GS57072 - Ge 38 mm CA mounted GS57074 - Ge 50 mm CA mounted GS57076 - Ge 71 mm CA mounted GS57006 - CaF2 unmounted GS57080 - CaF2 25 mm CA mounted GS57082 - CaF2 38 mm CA mounted GS57084 - CaF2 50 mm CA mounted GS57086 - CaF2 71 mm CA mounted GS57008 - BaF2 unmounted GS57090 - BaF2 25 mm CA mounted GS57092 - BaF2 38 mm CA mounted GS57094 - BaF2 50 mm CA mounted GS57096 - BaF2 71 mm CA mounted GS57016 - ZnSe unmounted GS57050 - ZnSe 25 mm CA mounted GS57052 - ZnSe 38 mm CA mounted GS57054 - ZnSe 50 mm CA mounted GS57056 - ZnSe 71 mm CA mounted

 

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Standard Infrared Polarizers

GS57000 Series Wire Grid Polarizers

Specac GS57000 series infrared polarizers are a range of high-quality holographic wire grid polarizers fabricated on a variety of infrared-transmitting substrates, and available in sizes from 25 mm to 71 mm diameter clear aperture.

 

Fabricated with a grid periodicity of 4000 lines/mm, these polarizer offer excellent extinction coefficient and transmission throughput characteristics with enhanced performance at short wavelengths for precision applications. Infrared substrate materials include as standard: calcium fluoride (CaF₂), barium fluoride (BaF₂), zinc selenide (ZnSe), germanium (Ge), and thallium bromoiodiode (KRS-5).

 

These polarizers are compatible with Specac's GS57300 series of Bench Mount Polarizer rotators.  In addition, 38 mm clear aperture GS57000 series Infrared Polarizers may be mounted in Specac's GS12510 Benchmark™ FTIR Polarizer Rotator for in-compartment polarization experimentation with Specac Benchmark™ baseplate mounted accessories such as: Golden Gate™ ATR, Silver Gate™ Evolution ATR, and Gateway™ Horizontal ATR systems, and the Cyclone™ and Tornado™ long pathlength gas cells.

 

Features and benefits

• 5000 cm^-1 to 285 cm^-1 operating range
• CaF₂, BaF₂, ZnSe, Ge, and KRS-5 substrates
• Polarizer clear apertures from 25 mm to 71 mm
• Wide acceptance angle for non-collimated beam

 

Ordering Information

KRS-5 substrate polarizers

57001 - Unmounted (25mm O.D.)

57010 - Mounted (41mm O.D., 25mm C.A., 6.7mm thk)

57012 - Mounted (55mm O.D., 38mm C.A., 8.7mm thk)

57014 - Mounted (70mm O.D., 50mm C.A., 8.7mm thk)

 

Ge substrate polarizers

57003 - Unmounted (25mm O.D.)

57070 - Mounted (41mm O.D., 25mm C.A., 6.7mm thk)

57072 - Mounted (55mm O.D., 38mm C.A., 8.7mm thk)

57074 - Mounted (70mm O.D., 50mm C.A., 8.7mm thk)

57076 - Mounted (90mm O.D., 71mm C.A., 9.7mm thk)

 

CaF₂ substrate polarizers

57006 - Unmounted (25mm O.D.)

57080 - Mounted (41mm O.D., 25mm C.A., 6.7mm thk)

57082 - Mounted (55mm O.D., 38mm C.A., 8.7mm thk)

57084 - Mounted (70mm O.D., 50mm C.A., 8.7mm thk)

57086 - Mounted (90mm O.D., 71mm C.A., 9.7mm thk)

 

BaF₂ substrate polarizers

57008 - Unmounted (25mm O.D.)

57090 - Mounted (41mm O.D., 25mm C.A., 6.7mm thk)

57092 - Mounted (55mm O.D., 38mm C.A., 8.7mm thk)

57094 - Mounted (70mm O.D., 50mm C.A., 8.7mm thk)

57096 - Mounted (90mm O.D., 71mm C.A., 9.7mm thk)

 

ZnSe substrate polarizers

57016 - Unmounted (25mm O.D.)

57050 - Mounted (41mm O.D., 25mm C.A., 6.7mm thk)

57052 - Mounted (55mm O.D., 38mm C.A., 8.7mm thk)

57054 - Mounted (70mm O.D., 50mm C.A., .7mm thk)

57056 - Mounted (90mm O.D., 71mm C.A., 9.7mm thk)