Holographic Wire Grid Polarizers

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Optometrics

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.

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

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

Resources

Product SKUs

Product Listing

Substrate	GE (AR/AR)	Size	50 mm dia.
Size Tolerance	±0.5 mm	Thickness	5.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	45 mm
Mount	Unmounted	Extinction ratio @ 10.6µ	300:1
surface-flatness	λ/10 @ 10.6μ	Parallelism	≤ 3 arc minutes
wire-grid-spacing	2700 grooves/mm	Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	25 mm dia.
Size Tolerance	±0.5 mm	Thickness	5.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	18 mm
Mount	Ring Mounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	25 mm dia.
Size Tolerance	±0.5 mm	Thickness	2.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	22.5 mm
Mount	Unmounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	29 mm dia.
Size Tolerance	±0.5 mm	Thickness	2.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	25 mm
Mount	Unmounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	35 mm dia.
Size Tolerance	±0.5 mm	Thickness	5.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	25 mm
Mount	Ring Mounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	38 mm dia.
Size Tolerance	±0.5 mm	Thickness	3.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	34 mm
Mount	Unmounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	50 mm dia.
Size Tolerance	±0.5 mm	Thickness	6.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	34 mm
Mount	Ring Mounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	KRS-5	Size	50 mm dia.
Size Tolerance	±0.5 mm	Thickness	5.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	45 mm
Mount	Unmounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 15µ	300:1	surface-flatness	Does not apply to KRS-5
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	ZnSe	Size	25 mm dia.
Size Tolerance	±0.5 mm	Thickness	5.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	18 mm
Mount	Ring Mounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 10µ	300:1	surface-flatness	λ/20 @ 10.6μ
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Substrate	ZnSe	Size	25 mm dia.
Size Tolerance	±0.5 mm	Thickness	2.0 mm
Thickness Tolerance	±0.5 mm	Clear Aperture	22.5 mm
Mount	Unmounted	Extinction ratio @ 3µ	150:1
Extinction Ratio @ 10µ	300:1	surface-flatness	λ/20 @ 10.6μ
Parallelism	≤ 3 arc minutes	wire-grid-spacing	2700 grooves/mm
Collateral Assets	MAX.PDF,MIN.PDF

Optometrics

Holographic Wire Grid Polarizers

Product SKUs

Product Listing

Holographic Wire Grid Polarizer, GE, 50 mm Dia., unmounted

Holographic Wire Grid Polarizer, KRS-5, 25 mm Dia., ring mounted

Holographic Wire Grid Polarizer, KRS-5, 25 mm Dia., unmounted

Holographic Wire Grid Polarizer, KRS-5, 29 mm Dia., unmounted

Holographic Wire Grid Polarizer, KRS-5, 35 mm Dia., ring mounted

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

Holographic Wire Grid Polarizer, KRS-5, 50 mm Dia., ring mounted

Holographic Wire Grid Polarizer, KRS-5, 50 mm Dia., unmounted

Holographic Wire Grid Polarizer, ZnSe, 25 mm Dia., ring mounted

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