Cemented True Zero-Order Waveplate consists of a single ultra-thin quartz true zero-order waveplate cemented to an H-K9L/JGS1 substrate. The quartz crystal is designed to the very thin true zero-order thickness, while the K9/JGS1 substrate provides enhanced mechanical strength.
| Material | Quartz Crystal / H-K9L-JGS1 |
| Specification | D5–D50 mm |
| Diameter Tolerance | +0.0/–0.2 mm |
| Wavefront Distortion | λ/8 – λ/10 @632.8 nm |
| Phase Retardation Accuracy | λ/60 – λ/150 (λ<400 nm) λ/150 – λ/350 (400 nm<λ<700 nm) λ/350 – λ/600 (λ>700 nm) |
| Parallelism | < 1 arcsec |
| Surface Quality | 20/10 |
| Clear Aperture | > 90% |
| Coating | Double-sided AR coating, R<0.25% @central wavelength |
| Damage Threshold | >3 J/cm², 20 ns, 20 Hz @1064 nm |