FIR - THz PEM Optical Heads, Aperture 36mm

Manufacturer's part number :


Manufacturer Hinds


Description :

II/SI40 photoelastic modulator uses a symmetric or octagonal shape for the modulator optical element with a Silicon material. A two-dimensional standing wave in the optical element doubles the retardation available for a given drive voltage. II/ZS50 photoelastic modulator is particularly useful in the far infrared and Terahertz spectrum with an aperture of 36mm and a nominal frequency at 40KHz. Hinds application scientists are available to consult on the optimal material and model for your particular experimental setup.

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Technical Data :

  • Quote and availability


  • Optical Material: Silicon
  • Retardation Range for λ/4: FIR - THz
  • Retardation Range for λ/2: FIR - THz
  • Aperture: 36mm
  • Nominal Frequency: 40 KHz
  • Wide acceptance angle (+/- 20°)
  • Benefits

  • The Optical Head may be used in any orientation desired
  • PEM optical heads may be operated in a vacuum
  • AR coatings can be provided on a custom basis for any of our modulator optical elements. Both narrow-band and broad-band coatings are available.

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