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Rochon Polarizer
- CASTECH offers an extensive production line of birefringent crystals for polarization applications.
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Introduction:
CASTECH offers an extensive production line of birefringent crystals for polarization applications. Our crystal polarizer family includes Glan-Taylor Polarizers, Glan-Laser Polarizers, Glan-Thompson Polarizers, Wollaston Polarizers, Rochon Polarizers and Quartz Polarization Rotators. Substrate options have α-BBO (UV), calcite (visible to Near-IR), yttrium orthovanadate (YVO4, Near-IR to Mid-IR), MgF2 (UV to Mid-IR), and crystal quartz (UV to Near-IR). Both the mounted and unmounted crystals are available. Contact us freely to select the ideal combination of construction type, substrate, coating design, angle of operation and laser damage resistance level to suit your applications.
Specifications：
| Material | α-BBO；YVO4；Quartz |
| Wavelength Range |
α-BBO: 220-900nm YVO4: 400-4000nm Quartz: 200-2300nm |
| Extinction Ratio |
Quartz:<5x10-5 α-BBO, YVO4:<5x10-6 |
| Surface Quality | 60/40 |
| Dimension Tolerance | ±0.1mm |
| Damage Threshold | ＞500MW/cm2 |
| Beam Deviation | ＜3′ |
| Wavefront Distortion | ＜λ/4 @ 632.8nm |
| Coating | Single Layer MgF2 |
| Housing | Black Anodized Aluminum |
• Wide Wavelength Range.
• Large Field Angle.
• High Extinction Ratio.
• Guarantee a wide transmission range, especially, suitable for UV applications.
• Split the ordinary and extraordinary ray, but only extraordinary beam is deviated.
Order Information：
| PRC | --- | 080 | --- | ABBO |
| ↓ | ↓ | ↓ | ||
| Product Code | Clear Aperture "a"=8mm | Material |
Rochon Polarizer：
| Part Number |
Separation Angle （°） |
a （mm） |
D （mm） |
Material |
| PRC-080-ABBO | 8.0-14 | 8 | 25.4 | α-BBO |
| PRC-100-ABBO | 10 | 25.4 | α-BBO | |
| PRC-150-ABBO | 15 | 30 | α-BBO | |
| PRC-080-QZ | 1.0-1.5 | 8 | 25.4 | Quartz |
| PRC-100-QZ | 10 | 25.4 | Quartz | |
| PRC-150-QZ | 15 | 30 | Quartz | |
| PRC-080-YVO4 | 9.8-13.0 | 8 | 25.4 | YVO4 |
| PRC-100-YVO4 | 10 | 25.4 | YVO4 | |
| PRC-150-YVO4 | 15 | 30 | YVO4 |
Note：Custom designs for other sizes and coatings are also available upon request.
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