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：Quartz Crystal | Retardance Tolerance：λ/300 |
| Parallelism：<1" | TWE：λ/8@633nm |
| Dimension Tolerance：+0/-0.1mm | Clear Aperture：Central 90% |
| Surface Quality：20/10 | AR：R<0.2%@Design Wavelength |
