洛匈格兰棱镜
Description:
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 Range;
High UV Transmission;
High Extinction Ratio;
Large Field Angle.
Specification:
Material | α-BBO, Calcite, YVO4, Quartz |
Wavelength Range | α-BBO:190-3500nm; YVO4:400-4000nm; Quartz:200-2300nm |
Extinction Ratio | Quartz:<5x10-5; a-BBO, YVO4:<5x10-6 |
Parallelism | <1 arc Min |
Surface Quality | 20/10 scratch/dig |
Beam Deviation | < 3 arc minutes |
Wavefront Distortion | λ/4@633nm |
Damage Threshold | >500 MW/cm2 |
Coating | Single MgF2 |
Mount | Black Anodized Aluminum |