Polarizer

Rochon Polarizers

Rochon Polarizers

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.

Separation Angular of Standard Products vs Wavelength


a -BBO, 190-3500nm

Quartz, 200-3300nm

YVO4, 400-4000nm

Specifications:

Material: a -BBO, MgF2, YVO4, Quartz
Wavelength Range: a -BBO:190-3500 nm, MgF2:130-6000nm,YVO4:400-4000nm,Quartz:200-2300nm
Extinction Ratio: Quartz:<5x10 -5 ; a -BBO, YVO4:<5x10 -6; MgF2:<5x10 -6
Parallelism: <1 arc Min
Surface Quality: 20-10
Beam Deviation: < 3 arc minutes
Wavefornt Distortion: l/4@633nm
Damage Threshold: >500 MW/cm 2
Coating: Single Layer MgF2
Mount: Black Anodized Aluminium

WSP Separation Angle

 
RCP5000
RCP6000
RCP8000
RCP9000
130
1.40
 
 
 
150
1.62
 
 
 
170
1.59
 
 
 
190
1.55
13.93
 
 
200
1.53
12.78
 
1.46
266
1.44
9.82
 
1.23
355
1.39
8.80
 
1.12
400
1.37
8.58
13.09
1.09
532
1.35
8.25
11.45
1.04
633
1.34
8.14
10.93
1.03
808
1.33
8.05
10.50
1.01
980
1.32
8.02
10.29
1.00
1064
1.32
8.00
10.22
1.00
1319
1.31
8.01
10.09
1.00
1550
1.30
8.03
10.03
1.00
2000
1.28
8.11
9.96
1.00
2500
1.25
8.23
9.91
 
3000
1.22
8.39
9.88
 
4000
1.13
8.83
9.83
 
5000
1.01
9.43
9.79
 
6000
0.85
 
 
 

 Standard Products

1. a -BBO Rochon Polarizer 

Part No. Wavelength Range(nm) Extinction Ratio Separation Angle(°) C.A. f a (mm) O.D. f d (mm) L±0.1(mm) Unit Price 
RCP6006 190-3500(Single Layer MgF2)(Coating@800nm) <5x10 -6 8.0°-14°8.05°@800nm  5 15 8 $299.00
RCP6008 7 25.4 11 $369.00
RCP6010 9 25.4 13 $499.00
RCP6015 13.5 30 18 $699.00
RCP6020 18 38 22 $999.00

 

2. Quartz Rochon Polarizer 

Part No. Wavelength Range(nm) Extinction Ratio Separation Angle(°) C.A. f a (mm) O.D. f d (mm) L±0.1(mm) Unit Price 
RCP9006 200~2300Single Layer MgF2(Coating@1064nm) <4x10 -5 1.0°-1.5°1°@1064nm  5 15 16 $199.00
RCP9008 7 25.4 20 $259.00
RCP9010 9 25.4 25 $339.00
RCP9015 13.5 30 35 $449.00
RCP9020 18 38 45 $599.00

 

3. YVO4 Rochon Polarizer 

Part No.  Wavelength Range(nm)  Extinction Ratio Separation Angle(°) C.A. f a (mm) O.D. f d (mm) L±0.1(mm) Unit Price 
RCP8006 400~4000(Single LayerMgF2)(Coating@1550nm) <4x10 -5 9.8°-13.0°10°@1064nm  5 15 8 $249.00
RCP8008 7 25.4 11 $329.00
RCP8010 9 25.4 13 $419.00
RCP8015 13.5 30 18 $559.00
RCP8020 18 38 22 $889.00

Note: "RFQ" stands for "Request For Quoting".

4. MgF2 Rochon Polarizer

Part No. Wavelength Range(nm) Extinction Ratio Separation Angle(°) C.A. Φa (mm) O.D. Φ d (mm) L±0.1(mm) Unit Price
RCP5006 130~6000(Uncoating|) <5x10 -5 1.35°@532 nm 5 15 16 $229.00
RCP5008 7 25.4 20 $309.00
RCP5010 9 25.4 25 $399.00
RCP5015 13.5 30 35 $559.00
RCP5020 18 38 45 $879.00

Note: Price list is for quantity <=5 pcs .

Call for OEM quantity pricing and Custom Design Polarizer.
A wide variety of custom design Rochon Polarizer are available upon request
Customer Designed Separation Angle at Certain Wavelength is available upon request
Custom Size Mount is available upon request
AR coated Polarizer is available upon request

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