Achromatic Waveplates
PRODUCT CATEGORIES
INOUIRY
Achromatic waveplates are 25.4 mm in diameter λ/2 and λ/4 waveplates. These waveplates are composed of two different materials: quartz crystal and magnesium fluoride (MgF2). Due to the different dispersions of the two materials, a relatively uniform phase retardation can be achieved over a wide wavelength range. Achromatic waveplates are also not very sensitive to temperature.
Technology Parameters with Achromatic Waveplates
| Materials | Quartz crystal + Magnesium fluoride |
|---|---|
| Diameter tolerance | +0.0/-0.2 mm |
| Outer diameter | Diameter 25.4 mm |
| Surface quality | 40/20 |
| Aperture | >90% |
| Parallelism (single piece) | <10 seconds |
| Phase delay accuracy | λ/100 |
| Phase | λ/2, λ/4 |
| Wavefront distortion | <λ/4@632.8 mm (air gap only) |
| Coating | Double-sided antireflection, single-sided residual reflectance R<1% |
| Damage threshold | Cemented: >500 J/cm², 20 ns, 20 Hz@1064 nm; Air gap: >5 J/cm², 20 ns, 20 Hz@1064 nm |
| Standard wavelength | 450-650 nm; 650-1100 nm; 900-2100 nm |
Phase Delay Curve with Achromatic Wave Plate
Inventory Parameters with Achromatic Waveplates
| Design Wavelength (nm) | Type | Phase (λ) | Support Size (mm) | Waveplate Diameter (mm) | Aperture (mm) |
|---|---|---|---|---|---|
| 450-650nm | air gap | λ/2 or λ/4 | 25.4*6mm | 20mm | 18mm |
| 650-1100nm | air gap | λ/2 or λ/4 | 25.4*6mm | 20mm | 18mm |
| 900-2100nm | air gap | λ/2 or λ/4 | 25.4*6mm | 20mm | 18mm |
If you need to order stock or custom waveplates, please contact our sales team:
info@borisuns.com