Warning: Calcite is a temperature-sensitive crystal and will crack if it is exposed to thermal shock. Allow the case to reach complete thermal equilibrium before opening (6 - 8 hours).
|Material||High Optical Grade Calcite|
|Wavelength Range||350 nm to 2.3 μm|
|Beam Deviation||20° (nominal)|
|Clear Aperture ||10 mm x 10 mm|
|Surface Quality||20-10 Scratch-Dig|
|Damage Threshold||1 W/cm2|
- Two Orthogonally Polarized Outputs
- Large, 20° Angular Deviation
- Symmetrical Outputs (within 1°)
- High, 100,000:1 Extinction Ratio
- 350 nm to 2.3 μm Operation for Uncoated Prisms
- AR Coated Versions for the 350 -700 nm and
650 - 1050 nm Ranges
- Highest Grade Optical Calcite
- 10 mm x 10 mm Clear Aperture, Ø1” Housing
The Wollaston prism offers the widest deviation angle of beam-displacing polarizers. This prism polarizer is made of two calcite prisms cemented together. Both output beams are deviated symmetrically to within ~1°. Since the output deviations are chromatic (see the plot on the Graphs tab), Wollaston prisms have been used in spectrometers as well as in polarization analyzers. Thorlabs' Wollaston prisms are mounted in a Ø1" anodized, labeled housing.
Our Wollaston prims are supplied uncoated for use over the 350 - 2300 nm range, or with one of two AR coatings for the 350 - 700 nm or 650 - 1050 nm wavelength ranges. Please see the Graphs tab for reflection and transmission plots.
Wollaston prisms are commonly used in rotation mounts. Due to the thickness of the prisms, they typically need to be mounted in an SM1 lens tube (i.e., SM1L10), which can then be threaded onto a rotation mount.
For further information on the properties of calcite, please see the Calcite tab above.