Compared with the wave plate, the rotator has the inherent advantage of independent rotation around its own optical axis. It does not need to be adjusted, it only needs to be installed to normal incident radiation. Polarizing plane rotators are usually used for specific wavelengths. It is only a little dependent on the ambient temperature.
Quartz polarizers are made of quartz crystals. Quartz crystal has natural optical rotation, so it can be used to rotate the polarization direction of linear polarized light, and does not change the characteristics of line polarized light. The polarization surface of the beam is rotated to a proper angle by using circular birefringence effect. The rotation angle is related to the thickness of the crystal. There are two options for the rotation direction, i.e. left rotation and right rotation.
Parameter
Basic Parameters
| Material | Crystalline Quartz 200-2500nm |
| Product ID | PD01001 |
| Dimensional tolerance | +0/-0.2mm |
| Surface quality | 20/10 |
| Clear Aperture | >90% |
| Parallelism | <10s |
| Wavefront distortion | <λ/4@632.8nm |
| Rotatory direction | Levorotation，dextrorotation |
| Rotation angle accuracy | <5arc minutes |
| Coating | AR Coating on both sides，R<0.25%@ Central wavelength |
| Damage threshold | >5J/cm2, 20ns, 20Hz @1064nm |
Application
- Polarimeter
Feature
- Crystalline Quartz，wavelength range 200-2500nm
- Support customer customization
- Large size available
- RoHS compliant
