MID-IR Waveplates

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

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)

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