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title: Catalog RFQ Rochon Polarizer
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# Rochon Polarizer

A Rochon polarizer separates incident beams into ordinary and extraordinary like some other polarizers; however the p-polarization is transmitted straight through while the s-polarization is transmitted with a deviation angle.

| Material | a-BBO or Quartz |
| --- | --- |
| Wavelength Range | a-BBO: 190-3500nm, Calcite: 350-2300 nm |
| Diameter Tolerance | ±0.10 mm |
| Parallelism | <1 arc Min |
| Surface Quality | 20/10 |
| Beam Deviation | < 3 arc minutes |
| Wavefront Distortion | λ/4@632.8nm |
| Damage Threshold | >500 MW/cm2 |
| Coating | MgF2 |
| Mount | Black anodized aluminum |