Holographic Wire Grid Polarizers ZnSe, CaF2, BaF2, KRS-5, Ge, 2.5-30µ with Thickness 3.0 mm and Size Tolerance ±0.5 mm

Optometrics

Holographic Wire Grid Polarizers with Thickness 3.0 mm and Size Tolerance ±0.5 mm

Holographic Wire Grid Polarizers

Optometrics manufactures holographic wire grid polarizers on CaF2 (Calcium Fluoride), ZnSe (Zinc Selenide), BaF2 (Barium Fluoride), KRS-5 and Ge (Germanium), covering a wavelength region from 2.5 to 30 microns.

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Features

Wavelength region: 2.5 to 30 microns
CaF2, ZnSe, BaF2, Ge and KRS-5 (Thallium Bromide) substrates
Finer grid pattern for better low wavelength performance
High transmission
Extinction ratio > 90,000:1

Anti-Reflective Coatings

Zinc Selenide’s transmission can be enhanced over a selected wavelength range, typically 9 to 11 microns, by an AR coating on the rear surface
Calcium Fluoride and Barium Fluoride have low refractive index values and do not see significant benefit from AR coatings
KRS-5 is not normally AR coated, because this would limit its broad transmission range, which is its primary advantage
Germanium polarizers are AR/AR coated to maximize transmission @10.6μ
Due to the manufacturing process ruled wire grid polarizers are not offered with AR coatings

Resources

Product SKUs

Holographic Wire Grid Polarizer Specifications | WP-H-B-34-38U

Extinction ratio @ 10µ	300:1	Substrate	BaF2
Size (mm)	38 mm dia.	Size Tolerance	±0.5 mm
Thickness	3.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Unmounted
Surface Flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer Specifications | WP-H-C-34-38U

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	38 mm dia.	Size Tolerance	±0.5 mm
Thickness	3.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Unmounted
Surface Flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer, GE, 38 mm Dia., unmounted

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WP-H-G-34-38U

$1,625.00

Available on backorder

Holographic Wire Grid Polarizer Specifications | WP-H-G-34-38U

Extinction ratio @ 10.6µ	300:1	Substrate	GE (AR/AR)
Size (mm)	38 mm dia.	Size Tolerance	±0.5 mm
Thickness	3.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Unmounted
Surface Flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer, KRS-5, 38 mm Dia., unmounted

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WP-H-K-34-38U

$1,895.00

1 in stock

Holographic Wire Grid Polarizer Specifications | WP-H-K-34-38U

Extinction ratio @ 15µ	300:1	Substrate	KRS-5
Size (mm)	38 mm dia.	Size Tolerance	±0.5 mm
Thickness	3.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Unmounted
Surface Flatness	Does not apply to KRS-5	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer, ZnSe, 38 mm Dia., unmounted

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WP-H-Z-34-38U

$1,490.00

Available on backorder

Holographic Wire Grid Polarizer Specifications | WP-H-Z-34-38U

Extinction ratio @ 10µ	300:1	Substrate	ZnSe
Size (mm)	38 mm dia.	Size Tolerance	±0.5 mm
Thickness	3.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Unmounted
Surface Flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm