Rochon Prism PRH1020
A Rochon prism comprises two birefringent crystals joined with cement or optical contact. In the first crystal, o and e rays propagate together along the optical axis at the same ordinary refractive index no. In the second, the o ray continues at no, while the E ray changes from no to ne and refracts at the interface. Further refraction at the second crystal/air interface increases the separation angle between exiting O and E rays. Separation angles can be designed for customer-specified spectral bands.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | a-BBO, Calcite, YVO₄, Quartz |
| Wavelength Range | a-BBO: 190～3500; Calcite: 350～2300 nm; YVO₄: 500～4000 nm; Quartz: 200～2300 nm |
| Extinction Ratio | a-BBO: <5x10⁻⁶; YVO 4: <5x10⁻⁶; Calcite: <5x10⁻⁵; MgF2: <5x10⁻⁵ |
| Surface Quality | 20 / 10 |
| Parallelism | <1' |
| Beam Shift | <1' |
| Wavefront Distortion [633nm] | λ/4@633nm |
| Damage Threshold | >500MW/cm² |
| Optical Coating | Single-Layer MgF₂ |
| Lens Frame | Hard Aluminum, Black Anodized |
| a-BBO Rochon Prism - Wavelength Range | 190～2300nm |
| a-BBO Rochon Prism - Extinction Ratio | <5x10⁻⁶ |
| a-BBO Rochon Prism - Beam-Splitting Angle [1064nm] | 8°@1064nm |
| a-BBO Rochon Prism -CA φa | 20.0 mm |
| a-BBO Rochon Prism - Outer Diameter φd | 38.0 mm |
| a-BBO Rochon Prism - Length | 29.0 mm |
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