Wire Grid Polarizer by Specac Ltd

Manufacturer Specac Ltd  |   Model: GS57130  |  Available Worldwide
  |  1 reviews
A 133.35mm x 95.25mm (Outer Diameter x Inner Diameter), 10µm x 25µm (Wire x Period) Free Standing Wire Grid Polarizer. Others available, contact Specac for more info.

Wire Grid Polarizer by Specac Ltd product image
A Specac Wire Grid Polarizer

Average Rating: 1.3
1 Scientist has reviewed this product

2 out of 5
Ease of use
1 out of 5
After sales service
1 out of 5
Value for money

  • Status:

  • Member since: 2018

  • Organization: Iowa State Univesity

  • Ease of use
    2 out of 5
    After sales service
    1 out of 5
    Value for money
    1 out of 5
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Bad customer service, ok product
Rating: 1.3

  • Application Area: Optical research

"Very bad customer service. We bought the wire grid polarizer and mounts from them but it turns out they don't match. The engineer blame us not looking carefully about the description but it was them who recommended this mount to us. And they charge us for 30% restocking fee for returning the mount. The quality of wire grid polarizer is ok. But it is really trouble for us to mount it."

Review date: 11 Jul 2018 | Wire Grid Polarizer

Specac provide Free-Standing Wire Grid Polarizers for Far-Infrared and Terahertz (THz) polarizing applications. These polarizers consist of an array of parallel 5 μm or 10 μm tungsten wires secured to a mounting frame with a wire spacing of 12.5 μm or 25 μm. These wires act to reflect the incident radiation electric field component parallel to the direction of the wires, and transmit the electric field component perpendicular to the wires. Operating wavelengths are from 20 μm to 10 mm.

Typical applications include use as far-infrared and terahertz polarizing beamsplitters, infrared spectroscopy polarization studies, variable attenuation or reflection of polarized sources, or as coupling devices for long wavelength sources.

Standard polarizer frames are circular in shape, manufactured from aluminium, with a clear aperture in the range 25 mm to 120 mm. For customer applications, gold-plated tungsten or beryllium copper wire is available in diameters up to 50 μm. Furthermore, custom frame sizes and alternative frame materials of stainless steel, invar, tefnol, glass fiber, and molybdenum are offered.


  • Wide wavelength range (20 µm to 10mm)
  • High degree of polarization: >99.9%
  • High transmission efficiency
  • No beam deviation or dispersion
  • Custom frame sizes and shapes

Contact Specac if you require a bespoke optical solution.