Specifications:
| Material | Crystal Quartz |
| Dimension Tolerance | +0/-0.2mm |
| Surface Quality | 20/10 scratch and dig |
| Parallelism (for single plate) | <1 arc Sec |
| Retardation Tolerance | < λ/300 |
| Wavefront distortion (for single plate) | <λ/8@632.8nm |
| Clear Aperture | >90% |
| AR Coating | R<0.25%@central wavelength |
| Damage Threshold | >500mJ/cm2, 20ns, 20Hz @1064nm |
| Mount | No, Available for Black Anodized Aluminium |
| Part Number | Type | Diameter (mm) | Retardation (λ) | Wavelength (nm) | Clear Aperture (mm) |
| WPC212-532 | Cemented | 12.7 | λ/2 | 532 | 11.5 |
| WPC225-532 | Cemented | 25.4 | λ/2 | 532 | 22.9 |
| WPC212-633 | Cemented | 12.7 | λ/2 | 633 | 11.5 |
| WPC225-633 | Cemented | 25.4 | λ/2 | 633 | 22.9 |
| WPC212-780 | Cemented | 12.7 | λ/2 | 780 | 11.5 |
| WPC225-780 | Cemented | 25.4 | λ/2 | 780 | 22.9 |
| WPC212-1310 | Cemented | 12.7 | λ/2 | 1310 | 11.5 |
| WPC225-1310 | Cemented | 25.4 | λ/2 | 1310 | 22.9 |
| WPC212-1550 | Cemented | 12.7 | λ/2 | 1550 | 11.5 |
| WPC225-1550 | Cemented | 25.4 | λ/2 | 1550 | 22.9 |
| WPC412-532 | Cemented | 12.7 | λ/4 | 532 | 11.5 |
WPC425-532 | Cemented | 25.4 | λ/4 | 532 | 22.9 |
| WPC412-633 | Cemented | 12.7 | λ/4 | 633 | 11.5 |
| WPC425-633 | Cemented | 25.4 | λ/4 | 633 | 22.9 |
| WPC412-780 | Cemented | 12.7 | λ/4 | 780 | 11.5 |
| WPC425-780 | Cemented | 25.4 | λ/4 | 780 | 22.9 |
| WPC412-1310 | Cemented | 12.7 | λ/4 | 1310 | 11.5 |
| WPC425-1310 | Cemented | 25.4 | λ/4 | 1310 | 22.9 |
| WPC412-1550 | Cemented | 12.7 | λ/4 | 1550 | 11.5 |
| WPC425-1550 | Cemented | 25.4 | λ/4 | 1550 | 22.9 |
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