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ROCHON POLARIZERS

 

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

 

 

1. a-BBO Rochon Polarizer

 

C.A. fa(mm) O.D. fd(mm) L ¯0.1(mm)

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

 

2. YVO4  Rochon Polarizer

C.A. fa(mm) O.D. fd(mm) L ¯0.1(mm)

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

 

3. Quartz Rochon Polarizer

 

C.A. fa(mm) O.D. fd(mm) L ¯0.1(mm)

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

 

4. MgF2 Rochon Polarizer

 

C.A. fa(mm) O.D. fd(mm) L ¯0.1(mm)

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

 

 

 

Wollaston Polarizer

 

Photonchina’s wollaston polarizer can separate an incident beam into two rays: extraordinary and ordinary ray with a deviation angle which is dependent on wavelength. Both rays are transmitted through the other surface.

 

Specifications: 

Material: a-BBO, Calcite ,YVO4,Quartz

Wavelength Range: a-BBO:190-3500 nm, Calcite:350-2300 nm, YVO4:400-5000 nm,Quartz:200-2300 nm

Extinction Ratio: Calcite,Quartz:<5x10-5; a-BBO,YVO4:<5x10-6

Parallelism: <1 arc Min

Surface Quality: 20/10

Beam Deviation: < 3 arc minutes

Wavefornt Distortion: λ/4@632.8nm

Damage Threshold: >500 MW/cm2

Coating: Single MgF2

Mount: Black Anodized Aluminium

 

 

 

1. a-BBO Wollaston Polarizer

 

C.A.φa (mm) O.D.φd (mm) L (mm)

6.0             15.0 15.0

8.0             25.4 17.0

10.0             25.4 19.0

15.0             30.0 23.0

 

2. Calcite Wollaston Polarizer

 

C.A.φa (mm) O.D.φd (mm) L (mm)

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

 

 

3. Yvo4 Wollaston Polarizer

 C.A.φa (mm) O.D.φd (mm) L (mm)

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

 

 

4. Quartz Wollaston Polarizer

C.A.φa (mm) O.D.φd (mm) L (mm)

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