
Quartz Zero-Order Quarter-Wave Plate — QWP51-780B
QWP51-780BDesign Tools
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Quartz Zero-Order Quarter-Wave Plate — Model QWP51-780B
Quartz air-spaced zero-order waveplate, diameter 50.8 mm, clear aperture 45.0 mm, design wavelength 780 nm, retardation λ/4
Overview
Quartz zero-order quarter-wave plate has a retardation of λ/4 and a clear aperture of Ø45.0 mm. The quartz zero-order quarter-wave plate is mounted in a two-inch black anodized aluminum ring, fixed with glue inside and cannot be disassembled. The zero-order quarter-wave plate with a two-inch mount has a diameter of Ø50.8 mm and a thickness of 4.8 mm, and can be installed in a two-inch rotation mount. The front and back surfaces of the housing are marked with thin lines indicating the fast axis direction of the wave plate, and the circumference is engraved with the wave plate model, retardation, design wavelength, and other information for easy identification.
Key Features
- Material: Quartz Crystal
- Air-gap design suitable for high-power applications
- Design wavelength: 266 nm-1550 nm, multiple options available
- Clear aperture options: Ø10 mm, Ø20 mm, Ø45 mm
- Customization services provided
- Mounting base diameter: Ø50.8 mm
- Clear aperture: Ø45.0 mm
- With two-inch mount, non-removable
| Optical component material | Crystalline Quartz |
| Diameter | 50.8 mm |
| Diameter tolerance | +0.0/-0.1 mm |
| Clear Aperture | Ø45.0 mm |
| Thickness | 4.8 mm |
| Design Wavelength | 780 nm |
| Coating | V-type anti-reflection coating (@780 nm) |
| Anti-reflective coating | Ravg<0.25% (6° incidence angle, single side) |
| Retardance | λ/4 |
| Retardance Accuracy | ±λ/200 |
| Surface finish (scratches/pits) | 40/20 |
| Transmitted Wavefront Error (TWE) (@633 nm) | λ/6 |
| Surface Parallelism | <10 arcsec |






