Materials for making Rochon Polarizer: Alpha-BBO, YVO4,Quartz and MgF2.
Stocked and custom polarizers available.
High Polarization Purity for Each Output.
Separate Unpolarized Light into Two Orthogonally Polarized Outputs.
High Extinction Ratio for Each Output.
Wide Wavelength Range.
Mount options: Rectangular or Round
1. a-BBO Rochon Polarizer
| Part NO. | Wavelength Range(nm) | Extinction Ratio | Separation Angle | C.A | O.D | L |
| mm | mm | mm | ||||
| PRH1006 | 190~2300nm | <5×10-6 | 8°@1064nm | 6 | 15 | 15 |
| PRH1008 | 8 | 25.4 | 17 | |||
| PRH1010 | 10 | 25.4 | 19 | |||
| PRH1015 | 15 | 30 | 23 | |||
| PRH1020 | 20 | 38 | 29 |
2. YVO4 Rochon Polarizer
| Part NO. | Wavelength Range(nm) | Extinction Ratio | Separation Angle | C.A | O.D | L |
| mm | mm | mm | ||||
| PRH3006 | 400~4000nm | <5×10-6 | 10°@1550nm | 6 | 15 | 15 |
| PRH3008 | 8 | 25.4 | 17 | |||
| PRH3010 | 10 | 25.4 | 19 | |||
| PRH3015 | 15 | 30 | 23 | |||
| PRH3020 | 20 | 38 | 25 |
3. Quartz Rochon Polarizer
| Part NO. | Wavelength Range(nm) | Extinction Ratio | Separation Angle | C.A | O.D | L |
| mm | mm | mm | ||||
| PRH4006 | 200~2300nm | <5×10-5 | 1°@1064nm | 6 | 15 | 20 |
| PRH4008 | 8 | 25.4 | 24 | |||
| PRH4010 | 10 | 25.4 | 28 | |||
| PRH4015 | 15 | 30 | 38 | |||
| PRH4020 | 20 | 38 | 48 |
4. MgF2 Rochon Polarizer
| Part NO. | Wavelength Range(nm) | Extinction Ratio | Separation Angle | C.A | O.D | L |
| mm | mm | mm | ||||
| PRH5006 | 110~8000nm | <5×10-5 | 1°@980nm | 6 | 15 | 14 |
| PRH5008 | 8 | 25.4 | 18 | |||
| PRH5010 | 10 | 25.4 | 18 | |||
| PRH5015 | 15 | 30 | 38 | |||
| PRH5020 | 20 | 38 | 48 |
Rochon Polarizer is made of two birefringent material prisms cemented together, which is used in applications where good polarization selectivity is required across a large range of wavelengths. Rochon polarizer separates incident beam into ordinary ray and extrordinary ray like Wollaston Polarizer , but extraordinary ray is straight transmitted through, while ordinary is transmitted with a deviation angle. High polarization purity output is achieved with the use of a Rochon polarizer.
| Material | a -BBO, MgF2, YVO4 or Quartz |
| Wavelength Range | a -BBO: 200-3500nm, MgF2: 130-2300nm, YVO4: 400-5000nm, Quartz: 200-2300nm |
| Extinction Ratio | Quartz:<5x10-5 ; a -BBO,YVO4:<5x10 -6; MgF2:<5x10-6 |
| Parallelism | <1 arc Min |
| Surface Quality | 20/10 |
| Beam Deviation | < 3 arc minutes |
| Wavefornt Distortion | λ/4@633nm |
| Damage Threshold | >500 MW/cm2 |
| Coating | Single Layer MgF2 |
Separation Angular of Standard Products vs Wavelength
How does a Rochon Polarizer work?
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.
Which material is suitable for Rochon Polarizer ?
typically a uniaxial birefringent material such as Alpha-BBO, YVO4,Quartz and MgF2.
What are the different types of polarizers?
Polarization by Fresnel reflection.
Birefringent polarizers.
Thin film polarizers.
Wire-grid polarizers.
Literature
Design of a broadband UV-visible a-barium borate polarizer;R Appel, CD Dyer, JN Lockwood - Applied optics, 2002 - opg.optica.org
Measurements of ultrastrong magnetic fields during relativistic laser–plasma interactions;M Tatarakis, A Gopal, I Watts, FN Beg… - Physics of …, 2002 - aip.scitation.org
Rochon-prism-like planar circularly polarized beam splitters based on dielectric metasurfaces;B Wang, F Dong, H Feng, D Yang, Z Song, L Xu… - ACS …, 2017 - ACS Publications
Why future supercomputing requires optics;HJ Caulfield, S Dolev - Nature Photonics, 2010 - nature.com
