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Rochon偏振器
Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down the optic axis in the first prism under the ordinary refractive index. Upon entering the second prism the ordinary beam experiences the same refractive index and continues undeviated. The extra-ordinary beam, however, now has a lower refractive index and is refracted at the interface. The angle of refraction is further increased at the birefringent material/air exit surface. Any separation angle can be designed for specific wavelength upon the requirement. The separation angle of standard products vs wavelength is shown in the plot below.

Specifications:
Material: α-BBO,YVO4,Quartz,MgF2 
Wavelength Range:

  • α-BBO:190-3500nm
  • YVO4:400-4000nm
  • Quartz:200-2300nm
  • MgF2:120-7500nm
Extinction Ratio: α-BBO,YVO4:<5x10-6;Quartz:<4x10-6,MgF2:<5x10-5
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
Mount: Black Anodized Aluminium
P/NMaterialExtinction RatioSeparation Angle(o)C.A.O.D.L
71601α-BBO<5x10~68.0°~14°6158
71602α-BBO<5x10~68.0°~14°825.411
71603α-BBO<5x10~68.0°~14°1025.413
71604α-BBO<5x10~68.0°~14°153018
71605α-BBO<5x10~68.0°~14°203822
71606Quartz<4x10~61.0°~1.5°61516
71607Quartz<4x10~61.0°~1.5°825.420
71608Quartz<4x10~61.0°~1.5°1025.425
71609Quartz<4x10~61.0°~1.5°153035
71610Quartz<4x10~61.0°~1.5°203845
71611YVO4<5x10~69.8°~13.0°6158
71612YVO4<5x10~69.8°~13.0°825.411
71613YVO4<5x10~69.8°~13.0°1025.413
71614YVO4<5x10~69.8°~13.0°153018
71615YVO4<5x10~69.8°~13.0°203822
71616MgF2<5x10~51.35°@532nm61516
71617MgF2<5x10~51.35°@532nm825.420
71618MgF2<5x10~51.35°@532nm1025.425
71619MgF2<5x10~51.35°@532nm153035
71620MgF2<5x10~51.35°@532nm203845
71621MgF2<5x10~51.35°@532nm203845
●尺寸单位:毫米
●其他规格和镀膜要求请联系EastOptics销售获得。