Infrared Wire Grid Polarizers for FTIR Spectroscopic Analysis

A wide range of infrared wire grid polarizers is manufactured by Specac for FTIR spectroscopic analysis.

Polarizer Applications

  • Achieving optimum sensitivity for reflectance measurements
  • Measurement of thin films on reflective surfaces
  • Studying the orientation effects of polymers, single crystals, and other types of molecules

Polarizer Substrates

  • Barium fluoride (BaF2)
  • Germanium (Ge)
  • Calcium fluoride (CaF2)
  • Thalium bromoiodide (KRS-5)
  • Zinc selenide (ZnSe)

The infrared wire grid polarizers have a grid periodicity of 4000 lines/mm, which allow them to provide excellent throughput and high extinction coefficients over the 5000 cm−1 to 285 cm−1 range. The polarizer has a thin profile that makes it perfect for FT-IR applications where there are space limitations.

Usable in Conjunction with Spectrometer Accessories

The polarizers can be directly fitted into the aperture ports of all Benchmark™ baseplate compatible accessories available from Specac. Accessories include the Gateway™ horizontal ATR, Silver Gate™ Evolution ATR, Golden Gate™ ATR systems, and the Tornado™ and Cyclone™ long pathlength gas cells. These polarizers can even be used with 3″ x 2″ Polarizer Rotator Slide Mount offered by Specac.

FTIR Polarizer Reviews

Great product and affordable price.

Andrei Sirenko, Department of Physics, New Jersey Institute of Technology


  • High transmission
  • High extinction ratio
  • Ge, CaF2, ZnSe, BaF2, and KRS-5 substrates
  • Wavelength range: 5000 cm−1 to 285 cm−1
  • Includes a 25-mm clear aperture
  • Wide acceptance angle for non-collimated beam
  • FT-IR compatible mounting features
Specac - Introduction to FTIR

Other Equipment by this Supplier

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.