Introduction |
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Rochon Polarizer is the earliest polarizer which is made of two birefringence material prisms that are cemented together. This type polarizer separates incident beam into ordinary ray and extra-ordinary ray like Wollaston Polarizer but the extra-ordinary ray is straight transmitted through while ordinary is transmitted with a deviation angle. |
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Standard
Specifications |
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Items |
Specification |
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Material |
α-BBO, MgF2, YVO4 or Quartz |
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Wavelength Range |
α-BBO: 200-3500nm; MgF2: 130-4000nm; YVO4:500-4000nm, Quartz 200-2300nm |
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Extinction Ratio |
α-BBO:< 5×10 -6; Quartz:< 5×10 -5; MgF2:< 5×10 -6 YVO4:< 5×10 -6, |
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Dimension Tolerance |
±0.1mm |
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Surface Quality |
scratch and dig 20-10 |
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Beam Deviation: |
< 3 arc minutes |
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Wavefront Distortion |
<λ/4 @632.8 nm |
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Damage Threshold |
＞500MW/cm2 |
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Coating |
Single Layer MgF2 |
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Mount |
Black Anodized Aluminum | |
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1. α-BBO Rochon Polarizer
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Part NO. |
Extinction
Ratio |
Separation Angle (°) |
C.A. φa |
OD φd |
L |
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RCP6006 |
< 5×10 -6 |
8.0-14.0° 8.05°@800nm |
5.0 |
15.0 |
8.0 |
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RCP6008 |
7.0 |
25.4 |
11.0 |
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RCP6010 |
9.0 |
25.4 |
13.0 |
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RCP6015 |
13.5 |
30.0 |
18.0 |
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RCP6020 |
18.0 |
38.0 |
22.0 |
2. Quartz Rochon Polarizer
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Part NO. |
Extinction
Ratio |
Separation Angle (°) |
C.A. φa |
OD φd |
L |
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RCP9006 |
< 5×10 -5 |
1.0-1.5° 1°@1064nm |
5.0 |
15.0 |
16.0 |
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RCP9008 |
7.0 |
25.4 |
20.0 |
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RCP9010 |
9.0 |
25.4 |
25.0 |
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RCP9015 |
13.5 |
30.0 |
35.0 |
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RCP9020 |
18.0 |
38.0 |
45.0 |
3. YVO4 Rochon Polarizer
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Part NO. |
Extinction
Ratio |
Separation Angle (°) |
C.A. φa |
OD φd |
L |
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RCP8006 |
< 5×10 -6 |
9.8-13.0° 10°@1550nm |
5.0 |
15.0 |
8.0 |
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RCP8008 |
7.0 |
25.4 |
11.0 |
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RCP8010 |
9.0 |
25.4 |
13.0 |
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RCP8015 |
13.5 |
30.0 |
18.0 |
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RCP8020 |
18.0 |
38.0 |
22.0 |
4. MgF2 Rochon Polarizer
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Part NO. |
Extinction
Ratio |
Separation Angle (°) |
C.A. φa |
OD φd |
L |
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RCP5006 |
< 5×10 -6 |
1.35°@532nm |
5.0 |
15.0 |
16.0 |
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RCP5008 |
7.0 |
25.4 |
20.0 |
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RCP5010 |
9.0 |
25.4 |
25.0 |
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RCP5015 |
13.5 |
30.0 |
35.0 |
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RCP5020 |
18.0 |
38.0 |
45.0 |
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Prisms
