Air Spaced Zero Order Waveplate
Air spaced zero order waveplate is constructed by two quartz plates installed in a mount, to form a air gap between the two quartz plates. The difference in thickness between the two plates determines the retardance. Zero order waveplates offer a substantially lower dependence on temperature and wavelength change than multi-order waveplates.
- High Damage Threshold
- Better Temperature Bandwidth
- Wide Wavelength Bandwidth
- AR coated and Mounted
Specifications
| Material | Crystal Quartz |
| Dimension Tolerance | + 0.0/ -0.2 mm |
| Surface Quality | 20/10 |
| Clear Aperture | > 90% central area |
| Wavefront Distortion | < λ/8@632.8 nm |
| Parallelism(for single plate) | < 1 arc second |
| Retardation Tolerance | < λ/300 |
| AR Coating | R < 0.25%@central wavelength |
| Damage Threshold | > 10 J/cm2, 20 ns, 20 Hz@1064 nm |
Model
| Dia.*, mm | Wavelengths, nm | Retardation | Mount, mm |
| 12.7 | 266/355/405/488/532/660/670/ 780/980/1030/1053/1064/1534 | λ/2 | φ25.4 x 6 |
| 266/355/405/488/532/980/ 1030/1053/1064/1534 | λ/4 | ||
| 25.4 | 266/355/405/488/532/980/ 1030/1053/1064 | λ/2 | φ30 x 6 |
| λ/4 | |||
| 38.1 | 532 | λ/2 | φ50.8 x 6 |
| 399 | λ/4 |
* Other sizes upon request.
Coating Vs. Retardation Curve
