λ/2 Optical Polarizers Datasheets

Switchable Polarization Rotator
from Arcoptix S.A

Liquid Crystal twisted nematic polarization rotator (TN cell) is very useful when one wants to rotate the orientation of a linear polarization by a fix amount of typically 45 ° or 90 °. When light is traversing LC twisted nematic cell its polarization follows the rotation of the molecules... [See More]

  • Surface Flatness: λ/2; λ/4
  • Wavelength Range: 350 to 1800
  • Optical Polarizer: Polarization Rotator
  • Operating Temperature: 15 to 35
Retardation Plates
from Qioptiq

Made of crystal quartz. Antireflective coating (R < 0.2 % at central wavelength). Wavefront distortion: λ/8 (at 632.8 nm). Surface quality: 2 x 0.063 (20/10 scratch and dig). Parallelism better than 1". Retardation tolerance λ/500 (typical). Type S: Single plate (multiple order). [See More]

  • Surface Flatness: λ/2; λ/4
  • Polarizer Application: Infrared; Visible
  • Optical Polarizer: Waveplate / Retardation Plate
  • Wavelength Range: 488 to 1064
Polarization Components
from CVI Laser Optics

Polarization components are used to separate a beam of light into its orthogonal polarization states for isolation or routing.   Our catalog includes both cube and plate polarizers designed to perform under a range of operating conditions, including high power, broad bandwidth, low dispersion,... [See More]

  • Surface Flatness: λ/2 (optional feature); λ/10 (optional feature); lambda / 25
  • Wavelength Range: 193 to 2100
  • Polarizer Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
  • Extinction Ratio: 100 to 1000
Zero Order Air-Spaced Wave Plates
from EKSMA OPTICS

This Zero Order Air-Spaced Plate, made of single crystal quartz, has a clear aperture of 17 mm. For high power laser application. [See More]

  • Surface Flatness: λ/2; λ/4
  • Wavelength Range: 257 to 1064
  • Optical Polarizer: Waveplate / Retardation Plate
  • Clear Aperture: 17
Dual Wavelength Waveplate -- W-HPD212
from Ross Optical Industries

The low (multiple) order waveplate is designed to give a retardance of several full waves, plus the desired fraction. This results in a single, physically robust component with desired performance. However, even small changes in wavelength or temperature will result in significant changes in the... [See More]

  • Surface Flatness: λ/2
  • Polarizer Application: Infrared; Visible; Ultraviolet
  • Optical Polarizer: Waveplate / Retardation Plate
  • Wavelength Range: 266 to 1550
Achromatic Waveplates - Air Spaced
from Tower Optical Corporation

Tower ’s achromatic waveplate (AWP) is similar to a zero-order waveplate, which is made from two pieces of crystal quartz except that the AWP is composed of one piece of crystal quartz and one piece of magnesium fluoride, MgF2. Both of these materials are birefringent, however, by proper... [See More]

  • Surface Flatness: λ/2; λ/4
  • Wavelength Range: 465 to 1650
  • Optical Polarizer: Waveplate / Retardation Plate
  • Clear Aperture: 12