Rochon polarizer

Rochon polarizer

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*10-5α-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

 

 

  1. 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

 

 

  1. 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

 

 

  1. 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

 

 

  1. 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