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Quartz Zero-Order Quarter-Wave Plate — QWP20-670B
QWP20-670B$894.92
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Key Specifications
Wavelength
670.0nm
Transmittance
0.25%
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Quartz Zero-Order Quarter-Wave Plate — Model QWP20-670B
λ/4 quartz waveplate at 670 nm, mounted in standard SM housing.
Overview
LBTek's Quartz Zero-Order Quarter-Wave Plates deliver a λ/4 retardance at the design wavelength. The air-spaced compound design combines two quartz plates for cost-effective zero-order performance. Each plate is anti-reflection coated on both surfaces (R < 0.25% @ design wavelength) and mounted in a standard SM05 or SM1 lens tube for seamless integration into polarization control setups.
Key Features
- Zero-Order (air-spaced compound) design at the specified design wavelength
- Retardance: λ/4
- V-type anti-reflection coating on both surfaces
- Surface finish 10/5 to 20/10
- Operating temperature tolerant, polarization-stable
- Mounted in standard SM05 / SM1 housing for seamless integration
Applications
- Polarization state conversion (linear ↔ circular / elliptical)
- Laser isolator, interferometry, and ellipsometry systems
- Quantum optics and photonic research
- Integration with polarizing beamsplitters and prisms
| Optical component material | Quartz Crystal |
| Diameter | 25.4 mm |
| Clear Aperture | Ø20.0 mm |
| Thickness | 4.8 mm |
| Design Wavelength | 670 nm |
| Operating Wavelength | 670 nm |
| Coating | V-type anti-reflection coating (@670 nm) |
| Anti-reflective coating | Ravg<0.25%ᵃ (6°incidence angle, single surface) |
| Latency | λ/4 |
| Delay accuracy | ±λ/300 |
| Surface finish (scratches/pits) | 20/10 |
| Transmitted Wavefront Error (TWE) (@633 nm) | λ/8 |
| Surface Parallelism | <10 arcsec |
No CAD drawings available for this product.
