We offer a selection of 1/4-wave and 1/2-wave Achromatic Retarders that span the UV, visible, near IR, and IR portions of the spectrum. Two multiorder crystalline retarders—one made of crystalline quartz and one of magnesium fluoride—are combined in a subtractive mode to give an effective zero-order waveplate.

A selection of different crystals, such as quartz, sapphire and lanthanum fluoride, can be used to optimize performance specific to your application. Please see our custom products page and contact us for further information on the perfect choice for your project.
Specs/Benefits/Ordering Info