Rochon polarizer is made of two birefringent material prisms cemented or optical contacted together. The Rochon prism was invented by and is named after Abbé Alexis Marie Rochon. It is in many ways similar to the Wollaston prism, but the ordinary ray passes through the prism undeviated. Any separation angle can be designed according to request of customers.
Features
- Multiple Polarization Materials Available
- Ordinary Rays Pass Through Undeviated
- Extraordinary Rays Deviate
Photonchina Specifications:
Material: | a-BBO, Calcite, YVO4,Quartz,MgF2 |
Wavelength Range: | a-BBO:190-3500nm,YVO4:500-4000nm
Quartz:200-2300nm,Calcite:350-2300nm |
Extinction Ratio: | Quartz:<5*10-5,α-BBO ,YVO4:<5*10-6,MgF2:<10-4 |
Surface Quality: | 20 / 10 |
Beam Deviation: | < 3 arc minutes |
Wavefront Distortion: | λ /4@633nm |
Damage Threshold: | >500 MW/cm2 |
Coating: | Single MgF2 |
Mount: | Black Anodized Aluminium |
- a-BBO Rochon Polarizer
Wavelength Range(nm) | Extinction Ratio | Separate Field(°) | C.A. fa(mm) | O.D. fd(mm) | L ±0.1(mm) |
190-2300 | <5×10-6 | 8°@1064nm | 6.0 | 15.0 | 15.0 |
8.0 | 25.4 | 17.0 | |||
10.0 | 25.4 | 19.0 | |||
15.0 | 30.0 | 23.0 | |||
20.0 | 38.0 | 29.0 |
- YVO4 Rochon Polarizer
Wavelength Range(nm) | Extinction Ratio | Separate Field(°) | C.A. fa(mm) | O.D. fd(mm) | L ±0.1(mm) |
500-4000nm | <5×10-6 | 10°@1550nm | 6.0 | 15.0 | 15.0 |
8.0 | 25.4 | 17.0 | |||
10.0 | 25.4 | 19.0 | |||
15.0 | 30.0 | 23.0 | |||
20.0 | 38.0 | 25.0 |
- Quartz Rochon Polarizer
Wavelength Range(nm) | Extinction Ratio | Separate Field(°) | C.A. fa(mm) | O.D. fd(mm) | L ±0.1(mm) |
200-2300nm | <5×10-5 | 1°@1064nm | 6.0 | 15.0 | 20.0 |
8.0 | 25.4 | 24.0 | |||
10.0 | 25.4 | 28.0 | |||
15.0 | 30.0 | 38.0 | |||
20.0 | 38.0 | 48.0 |
- MgF2 Rochon Polarizer
Wavelength Range(nm) | Extinction Ratio | Separate Field(°) | C.A. fa(mm) | O.D. fd(mm) | L ±0.1(mm) |
110-8000nm | <5×10-4 | 1°@980nm | 6.0 | 15.0 | 14.0 |
8.0 | 25.4 | 18.0 | |||
10.0 | 25.4 | 18.0 | |||
15.0 | 30.0 | 38.0 | |||
20.0 | 38.0 | 48.0 |