— Holographic Wire Grid Polarizers — Overcoatings — Standard Sizes and Options — Highlights — Specifications

HOLOGRAPHIC WIRE GRID POLARIZERS
Working with experts in the field, Optometrics has developed a special holographic technique to produce Infrared Polarizers with sub-micron grid spacing. In the Companys holographic laboratory, an interferometrically generated interference pattern is produced from monochromatic light and exposed onto a photo-resist coated substrate. Once developed, the resist has a regular sinusoidal profile which is vacuum aluminized at an oblique angle to create the array of parallel conductors.

The fabrication of holographic wire grid polarizers permits the use of a wide variety of infrared materials that do not lend themselves to the ruling process. They are available with a spacing of 2700 grooves/mm for optimum short-wavelength efficiency.

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Zinc Selenide has a high refractive index and transmission at specific wavelength regions which can be enhanced by an AR coating on the rear surface only. Zinc Selenide is usually optimized for transmission at specific laser lines, typically from 9 to 11 microns.

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STANDARD SIZES AND OPTIONS
Holographic wire grid polarizers are currently available in several standard sizes from 25mm diameter up to 50mm diameter both mounted and unmounted.

If your application requires a different size or shape, please contact us for price and delivery. OEM inquires are welcome.

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HIGHLIGHTS

• 2700 grooves/mm for improved short wavelength performance
  
• On Calcium Fluoride (CaF2), Barium Fluoride (BaF2), Zinc Selenide (ZnSe), KRS-5 and Germanium (Ge)
  
• For improved short wavelength performance
  
• Extended infrared range
  
• High transmission
  
• High extinction ratios
  
• 360° bench mountable, rotary stage for FTIR spectrometers
  
• All polarizers can be mounted in a double protective ring

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SPECIFICATIONS

• Wire grid spacing 2700 grooves/mm (nominal)
  
• Parallelism: ≤ 3 arc minutes
  
• Surface flatness - N20 @ 10.6e up to 25mm C.A.
  
• Substrate Thickness
           For sizes under 30mm    ............................................................   2mm
           For sizes 30.49mm          .............................................................  3mm
           For sizes 2.49mm             ..............................................................  5mm  
  
• Dimensional Tolerance: ±0.5 mm
  
• Excludes KRS - 5

Holographic Wire Grid Polarizers Unmounted (Add $495 for AR Coating (rear surface only) on ZnSe ≤38mm dia. or $895 for 50mm dia.)
CATALOG NO.	5-8003	5-8103	5-8203	5-8303	5-8403	5-8004	5-8104	5-8204
SUBSTRATE	ZnSe	CaF2	BaF2	KRS-5	GE (AR/AR)	ZnSe	CaF2	BaF2
CLEAR APERTURE	22.5 mm	22.5 mm	22.5 mm	22.5 mm	22.5 mm	25 mm	25 mm	25 mm
OUTSIDE DIMENSIONS	25 mm dia.	25 mm dia.	25 mm dia.	25 mm dia.	25 mm dia.	29 mm dia.	29 mm dia.	29 mm dia.
PRICE($)*	1,110	885	1,125	1,375	1,170	1,255	1,095	1,235

Holographic Wire Grid Polarizers Unmounted

CATALOG NO

5-8304

5-8404

5-8011

5-8111

5-8211

5-8311

5-8411

5-8015

5-8115

5-8215

5-8315

5-8415

SUBSTRATE

KRS-5

GE (AR/AR)

ZnSe

CaF2

BaF2

KRS-5

GE (AR/AR)

ZnSe

CaF2

BaF2

KRS-5

GE (AR/AR)

CLEAR APERTURE

25 mm

25 mm

34 mm

34 mm

34 mm

34 mm

34 mm

45 mm

45 mm

45 mm

45 mm

45 mm

OUTSIDE DIMENSIONS

29 mm dia.

29 mm dia.

38 mm dia.

38 mm dia.

38 mm dia.

38 mm dia.

38 mm dia.

50 mm dia.

50 mm dia.

50 mm dia.

50 mm dia.

50 mm dia.

Price($)*

1,650

1,385

1,490

1,250

1,325

1,895

1,625

1,890

1,640

1,770

2,875

2,995

* Prices are in USD and are list prices only.

Holographic Wire Grid Polarizers Mounted (Protective Double Ring)
CATALOG NO.	5-8001	5-8101	5-8201	5-8301	5-8401	5-8031	5-8131
SUBSTRATE	ZnSe	CaF2	BaF2	KRS-5	GE (AR/AR)	ZnSe	CaF2
CLEAR APERTURE	18 mm	18 mm	18 mm	18 mm	18 mm	25 mm	25 mm
OUTSIDE DIMENSION	25 mm dia.	25 mm dia.	25 mm dia.	25 mm dia.	25 mm dia.	35 mm dia.	35 mm dia.
RING THICKNESS mm	5.0	5.0	5.0	5.0	5.0	5.0	5.0
PRICE($)*	1,190	995	1,195	1,650	1,275	1,395	1,235

Holographic Wire Grid Polarizers Mounted (Protective Double Ring)
CATALOG NO.	5-8231	5-8331	5-8431	5-8021	5-8121	5-8221	5-8321	5-8421
SUBSTRATE	BaF2	KRS-5	GEC (AR / AR)	ZnSe	CaF2	BaF2	KRS-5	GE (AR/AR)
CLEAR APERTURE	25 mm	25 mm	25mm	34 mm	34 mm	34 mm	34 mm	34 mm
OUTSIDE DIMENSION	35 mm dia.	35 mm dia.	35mm dia.	50 mm dia.	50 mm dia.	50 mm dia.	50 mm dia.	50 mm dia.
RING THICKNESS mm	5.0	5.0	5.0	6.0	6.0	6.0	6.0	6.0
PRICE($)*	1,370	1,795	1.535	1,620	1,385	1,445	2,035	1,785

* Prices are in USD and are list prices only.
**See accessories for rotary stage.

CATALOG NO.		PRICE($)
5-2146	Rotary stage. Bench mountable stage allows 360° rotation of wire grid polarizer in 25 mm diameter protective ring. For all above polarizers ≤ 25 mm.	230.00
5-2147	Rotary stage. Bench mountable stage allows 360° rotation of wire grid polarizer in 50 mm diameter protective ring. For all above polarizers ≥ 38 mm.	385.00
5-2148	Adapter. Allows 15 mm square wire grid polarizers to be used in 5-2146 rotary stage.	80.00

* Prices are in USD and are list prices only.

 

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