Holographic Wire Grid Polarizers ZnSe, CaF2, BaF2, KRS-5, Ge, 2.5-30µ with Substrate CaF2

Optometrics

Holographic Wire Grid Polarizers with Substrate CaF2

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, CaF2, 25 mm Dia., ring mounted

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WP-H-C-18-25M

$995.00

2 in stock

Holographic Wire Grid Polarizer Specifications | WP-H-C-18-25M

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	25 mm dia.	Size Tolerance	±0.5 mm
Thickness	5.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	18 mm	Mount	Ring Mounted
Surface Flatness	λ/20 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer, CaF2, 25 mm Dia., unmounted

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WP-H-C-22.5-25U

$885.00

Available on backorder

Holographic Wire Grid Polarizer Specifications | WP-H-C-22.5-25U

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	25 mm dia.	Size Tolerance	±0.5 mm
Thickness	2.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	22.5 mm	Mount	Unmounted
Surface Flatness	λ/20 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer Specifications | WP-H-C-25-29U

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	29 mm dia.	Size Tolerance	±0.5 mm
Thickness	2.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	25 mm	Mount	Unmounted
Surface Flatness	λ/20 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm

Holographic Wire Grid Polarizer, CaF2, 35 mm Dia., ring mounted

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WP-H-C-25-35M

$1,235.00

1 in stock

Holographic Wire Grid Polarizer Specifications | WP-H-C-25-35M

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	35 mm dia.	Size Tolerance	±0.5 mm
Thickness	5.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	25 mm	Mount	Ring Mounted
Surface Flatness	λ/20 @ 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, CaF2, 50 mm Dia., ring mounted

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WP-H-C-34-50M

$1,385.00

2 in stock

Holographic Wire Grid Polarizer Specifications | WP-H-C-34-50M

Extinction ratio @ 8µ	300:1	Substrate	CaF2
Size (mm)	50 mm dia.	Size Tolerance	±0.5 mm
Thickness	6.0 mm	Thickness Tolerance	±0.5 mm
Clear Aperture	34 mm	Mount	Ring Mounted
Surface Flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
Wire Grid Spacing	2700 grooves/mm