Our Quartz Waveplates (Retarders) are ideal for a range of applications, being made of quartz crystals and the retardance includes λ/2 and λ/4. Multiple order waveplates are ideal for applications where the wavelength deviates less than +/- 1% from the design wavelength of the waveplate.
| Material | Crystal Quartz |
| Diameter Tolerance | +0-0.2mm |
| Surface quality | 20-10 |
| Wavefront Distortion | <λ/8@632.8nm |
| Clear Aperture | >90% |
| Parallelism | <1 arc second |
| Retardation Tolerance | <λ/100 |
| Coating | R<0.25% @central wavelength |
| Damage Threshold | >10J/cm2, 20ns, 20Hz@1064nm |
| * Remark：Customized is available | |
