High Contrast Linear Polarizer

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$1,425.00$1,645.00

Key Features

  • Very high contrast
  • High transmission
  • Absorptive dichroic glass
In response to the need for improved contrast in the near-infrared region, Meadowlark Optics offers a line of High Contrast Linear Polarizers. These polarizers are constructed by laminating dichroic glass polarizers between glass substrates to achieve improved wavefront performance and surface quality and have contrast ratios as high as 10,000:1. Custom wavelength ranges from 630 to 1580 nm with 60 to 80 nm bandpasses and sizes from 10 to 25 mm are available.

Common Specifications

Polarizer Material: Dichroic Glass
Substrate Material: BK 7 Grade A, fine annealed
Transmitted Wavefront Distortion (at 632.8 nm): ≤ λ/4
Surface Quality: 40 – 20 scratch-dig
Beam Deviation: ≤ 3 arc min

Reflectance (per surface): ≤ 0.5 % at normal incidence
Temperature Range: – 50 ˚C to +70 ˚C
Recommended Safe Operating Limit:
     1 W/cm², CW
     200 mJ/cm², 20 ns, visible
     2 J/cm², 20 ns, 1064 nm

Mounting
Size
Wavelength Range (nm)
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Item #
Mount
Size
Wavelength
Clear Aperture
Thickness
Lead Time
Price
Quantity
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PPM-050-λ
Mounted
0.500 in. (12.70 mm)
Specify Custom Range 630 to 1580 nm
0.400 in. (10.16 mm)
0.250 in. (6.35 mm)
7 weeks
$1,425.00
Max:
Min: 0
Step: 1
PPM-100-λ
Mounted
1.000 in. (25.40 mm)
Specify Custom Range 630 to 1580 nm
0.700 in. (17.78 mm)
0.350 in. (8.89 mm)
7 weeks
$1,645.00
Max:
Min: 0
Step: 1

High Contrast Linear Polarizer

SPECIFICATIONS

Polarizer Material

Dichroic Glass

Substrate Material

BK 7 Grade A, fine annealed

Transmitt ed Wavefront Distortion (at 632.8 nm)

≤ λ/4

Surface Quality

40 – 20 scratch-dig

Beam Deviation

≤ 3 arc min

Reflectance (per surface)

≤ 0.5 % at normal incidence

Temperature Range

– 50 ˚C to + 70 ˚C

Recommended Safe Operating Limit

1 W/cm2 , CW

200 mJ/cm2 , 20 ns, visible

2 J/cm2 , 20 ns, 1064 nm

Prolonged exposure to strong ultraviolet radiation may damage these polarizers.

Ordering Information – Contact Us or Buy Online

ORDERING INFORMATION

Diameter
in. (mm)

Clear Aperture
in. (mm)

Thickness 
in. (mm)

Wavelength Range

Part Number

1.00 (25.4 mm)

0.40 (10.16 mm)

0.25 (6.35 mm)

Please specify

PPM – 050 – λ

1.00 (25.4 mm)

0.70 (17.78 mm)

0.35 (8.89 mm)

Please specify

PPM – 100 – λ

Custom sizes are available. Please contact your Meadowlark Optics sales engineer for assistance.

 

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POLARIZER Operating Principles

Polarizer Selection Guide

request a custom quote or get technical answers

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