Glan Thompson Prisms

Available with either 15 degree or 25 degree full angular fields Cemented surfaces handle up to 5W/cm2 pulsed E-ray transmittance better than 90% Provided in a convenient metal mounting cell These polarizing prisms are the simplest form of calcite polarizer. They are cemented, making them only useful for relatively low power applications. They have a wide and symmetrical field of view and make extremely versatile general purpose polarizers. The o-ray is absorbed in the material surrounding the prism and the e-ray is transmitted. Two versions are offered having different length/aperture ratios and consequently different angular fields. These prisms are normally provided in a metal cell but since they are cemented together they can be supplied unmounted if required. Specifications & Tolerances Dimensions: +0.2mm Wavelength range: 320-2300nm Transmittance (e-ray): >90% Material: Optical quality natural calcite Surface quality: 40-20 Cell: Black finished aluminum Extinction ratio: 1x10-5  Maximum beam deviation: 2.5arcmin Short prism: Long prism:   Length/Aperture ratio: 2.5:1   Length/Aperture ratio: 3:1   Angular field: +7.5°   Angular field:+12.5°   Polarization field: Symmetrical   Polarization field: Symmetrical   Maximum power level: CW -1W/cm2    Maximum power level: CW - 1W/cm2    Pulsed -5W/cm2    Pulsed - 5W/cm2  Glan Thompson Prisms CELL     Length/Aperture ratio   Side, a  Diameter, D  Length, L  Price  PART NUMBER     (mm)  (mm)  (mm)      2.5 6.0 15.75 19 $340.00 066-0120 2.5 8.0 18.9 24.9 $415.00 066-0130 2.5 10.0 22 30 $520.00 066-0150 2.5 12.0 25.4 35 $710.00 066-0160 2.5 14.0 25.4 41 $1,200.00 066-0170           3.0 6.0 15.75 22 $415.00 066-0230 3.0 8.0 18.9 28 $500.00 066-0240 3.0 10.0 22 35 $625.00 066-0260 3.0 12.0 25.4 41 $860.00 066-0270 3.0 14.0 25.4 46 $1,420.00 066-0280 For unmounted prisms append -U and deduct $50 from the price.