Generic filters
Generic filters
Generic filters

Mid-IR waveplates manufactured from MgF2 in true zero or single order designs, offering high transmission and very low wavefront distortion. 

Zero order waveplates outperform multiple order designs, providing broad bandwidth and lower sensitivity to temperature and wavelength changes, ideal for critical applications. 

True zero order waveplates are available for longer wavelengths, while true single order waveplates are offered for shorter wavelengths where a single plate would otherwise be too thin.

As with all of our optics, we will gladly provide these items custom designed to your particular requirements. As an alternative, we offer a selection of standard items as specified below.

  • Wavefront distortion: λ/8
  • Retardation tolerance: λ/100
  • Parallelism: 3arcsec
  • Surface quality: 40-20 S/D (DIN: 5/2 x 0.16)

MID-IR Waveplates

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at Quarter Waveplates Half Waveplates Diameter (mm)
7 benjamin 29/04/2026 04:22 PM benjamin 29/04/2026 04:22 PM 50.260.00206 50.260.00204 20,0
8 benjamin 29/04/2026 04:22 PM benjamin 29/04/2026 04:22 PM 50.260.00207 50.260.00205 12,7
9 benjamin 29/04/2026 04:22 PM benjamin 29/04/2026 04:22 PM 50.260.00078 50.260.00334 25,4

Notice: Please indicate the wavelength after the order-number, such as: 50.260.000206-3500.

Our standard wavelengths are: 3500nm, 4000nm, 4500nm, 5000nm, 5500nm, 6000nm, 6500nm, 7000nm

Our Mid-IR waveplates are true zero or single order designs manufactured from MgF2 providing high transmission and very low wavefront distortion.

The true zero order retardation plate is a single plate whose thickness is designed to give a retardance of the desired fraction.

Zero order waveplates show better performance than multiple order waveplates.

These retardation plates exhibit broad bandwidth and a lower sensitivity to temperature and wavelength changes. They should be considered for more critical applications.

We offer single plate true zero order waveplates for longer wavelengths. At short wavelengths, the plate becomes too thin to handle. In these cases we can offer a true single order waveplate.

Choosing the right retardation plate for your application can be a bewildering task, as we offer a wide range for many different uses.

Feel free to contact us for assistance. Our experienced staff is only too pleased to help you with the decision process.

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