Rochon polarizer 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.
Features:
●Wide Wavelength Rrange
●High UV Transmission
●High Extinction Ratio
●Large Field Angle
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 |
