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Rochon Polarizer & Beamsplitter

Rochon-Polarizer

Rochon polarizer, or Rochon prism, is one of the earliest polarizer design. Rochon polarizers are made of two birefringent crystal prisms cemented together. The optical axis of Rochon prisms are such arranged that in the first rochon prism the light propagate along the optical axis, and in the second rochon prism the light propagate perpendicular to the optical axis. So after rochon prisms, the o-ray remain undeviated, while the e-ray is deviated by an angle. Rochon polarizer separation angle is determinded by the prism wedge and the birefringent index. Any separation angle of rochon polarizer can be designed for specific wavelength upon request. The separation angle of standard rochon polarizer vs wavelength is listed in the following table:

Wavelength(nm) MgF2 a-BBO YVO4 Quartz
1301.40
1501.62
1701.59
1901.5513.93
2001.5312.781.46
2661.449.821.23
3551.398.801.12
4001.378.5813.091.09
5321.358.2511.451.04
6331.348.1410.931.03
8081.338.0510.501.01
9801.328.0210.291.00
10641.328.0010.221.00
13191.318.0110.091.00
15501.308.0310.031.00
20001.288.119.961.00
25001.258.239.91
30001.228.39 9.88
40001.138.83 9.83
50001.019.43 9.79
60000.85

Specifications of Rochon Polarizers

Polarizer Type: Rochon Polarizer
Material: a-BBO, MgF2, YVO4, Quartz
Wavelength Range: a-BBO: 200-3500 nm, MgF2: 130-6500 nm, YVO4: 400-4000 nm, Quartz: 200-2300 nm
Beam Deviation: < 3 arc minute, o-ray
Surface Quality: 20-10
Wavefront Distortion: < 1/4 @633nm
Coating: Single Layer MgF2
Extinction Ratio: > 55dB a-BBO YVO4 MgF2, > 45dB Quartz
Damage Threshold: > 500MW/cm2
Temperature Range: -50 °C to 80 °C
Mount: Black anodized aluminum

Standard Sizes: 6mm, 8mm, 10mm, 12.7mm, 15mm, 20mm

Rochon Polarizer Order Information

i.

1. Rochon Polarizer

RCA6010 10mm alpha-BBO Rochon polarizer

$595*


RCQ9010 10mm Quartz Rochon polarizer

$595*


RCY8010 10mm YVO4 Rochon polarizer

$595*


RCM5010 10mm MgF2 Rochon polarizer

$595*


Custom Rochon polarizer
Additional message: qty. wavelength, holder...

ii.

Rochon Polarizer Inquiry

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