Compare Model Drawings, CAD & Specs Wavelength Range Availability Price
wollaston polarizing prism model 10wlp08
Polarizing Prism, Wollaston Calcite, 25.4 mm Diameter, Uncoated
$618
In Stock
350-2300 nm
In Stock
wollaston polarizing prism model 10wlp08
Polarizing Prism, Wollaston Calcite, 25.4 mm Diameter, 430 to 700 nm
$656
In Stock
430-700 nm
In Stock
wollaston polarizing prism model 10wlp08
Polarizing Prism, Wollaston Calcite, 25.4 mm Diameter, 650 to 1000 nm
$656
In Stock
650-1000 nm
In Stock
wollaston polarizing prism model 10wlp08
Polarizing Prism, Wollaston Calcite, 25.4 mm Diameter, 1000 to 1550 nm
$656
In Stock
1000-1550 nm
In Stock

Specifications

  • Diameter
    25.4 mm
  • Material
    Optical Grade Calcite
  • Extinction Ratio
    >100,000:1
  • Damage Threshold
    1 W/cm2
  • Surface Quality
    20-10 scratch-dig
  • Surface Flatness
    <λ/4 at 632.8 nm
  • Housing
    Black anodized aluminum
  • Clear Aperture
    10.0 mm diameter
  • Transmitted Beam Deviation
    20° (nominal)
  • Wavefront Distortion
    <λ/2 at 632.8 nm, P-V

Features

Wollaston Polarizing Prism Construction

Wollaston prisms are fabricated from select-grade calcite right angle prism pairs, cemented together to form a cubical optic. The cemented prism pair is assembled into a 25.4 mm diameter black anodized aluminum housing with a 10 mm clear aperture. One of the housing's faces features a slotted indentation to aid with assembly, while the other face is white marked to indicate the optical plane within which the S- and P-polarized beams separate.

How Wollaston Polarizing Prisms Work

The optical axes of each prism in the pair are simultaneously perpendicular to one another and perpendicular to the propagating beam. This results in crystal axis orientation suddenly changing at the interface between the two prisms. The beam component that is S-polarized (relative to the prism hypotenuse) will experience a decrease in refractive index equal to the difference between ordinary and extraordinary refractive indices for Calcite. Light that is P-polarized will experience an equal but opposite change, or an increase of the index from the extraordinary index to the ordinary index. Thus, S- and P- polarized components of the incoming beam will diffract into opposite directions. The final output beams will exit the back port of the polarizer housing with a nominal separation angle of 20 degrees.

Excellent Optical Properties

Our Wollaston Calcite Crystal Linear Polarizing Prisms are designed for the most demanding applications that require two separately accessible, high purity orthogonal linearly polarized beams. They use optical grade calcite, which features excellent optical properties, including an extinction ration of greater than 100.000:1. Available uncoated or with a wide variety of AR coatings, they offer precision surface quality of 20-10 scratch-dig and low wavefront distortion.

Recommended Mounting

The housing has been designed to mount into our standard 25.4 mm optic holders, rotary stages, and precision positioning components by using the LT series holders. The Wollaston prism housing is 18 mm long with a 25.4 mm diameter, and we recommend to use the LT10-10 lens tube and LT10-NP1 thread adapter to mount into a standard rotation mount with 1.063-20 mounting thread.