High contrast Far-Infrared and Mid-Infrared Polarizer P03

High contrast polarizer for the far-infrared and complete mid-infrared simultaneously. High-frequency limit is extended to typically 5000cm-1 or 2m. A polarization contrast of Tp/Ts = 10,000 : 1 is reached.

  • Very high degree of polarization P = (Tp - Ts)/(Tp + Ts) > 99.99%
  • Thin, compact, rotable
  • Wide wavelength range > 250m to 2m (equivalent to 40 ..... 5000cm-1)
  • Complete and continuous mid-ir to far-ir-coverage
  • No substrate - there is no beam deviation and no substrate dependent dispersion
  • Ideal for 1.2 to 150THz spectroscopy
  • Standard clear apertures: 13 and 25mm diameter, new: 18.4mm
  • Application: THz-, fir-, mir-spectroscopy, polarimetry, ellipsometry

The polarizer is mounted in a 50 (33)mm dia. x 14mm thick metal ring. Four 2mm dia. screw holes on a 38 (24)mm dia. circle are provided for mounting.
New: the 18.4mm diameter CA is mounted in 25.4mm diameter ring with 2.5mm thickness
Please see below the typical extinction and transmission spectrum (against linearly polarized light as reference):

click for a linear scale
  • No rebuilding while switching from the far-infrared to the mid-infrared
click for a log scale
FIR-MIR polarizer P03