Stocked and custom polarizers available.
High Polarization Purity for Each Output.
Substrate Materials: Alpha-BBO, YVO4,Quartz and MgF2.
Separate Unpolarized Light into Two Orthogonally Polarized Outputs.
High Extinction Ratio for Each Output.
Wide Wavelength Range.
Mount options: Rectangular or Round.
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
