Compare Model Drawings, CAD & Specs Diameter Wavelength Range Material Extinction Ratio Availability Price
glan-thompson calcite polarizer model 10gt04
$897
In Stock
10GT04 25.4 mm 350-2300 nm Optical Grade Calcite 100,000:1
In Stock
$897
glan-thompson calcite polarizer model 10gt04
$958
In Stock
10GT04AR.14 25.4 mm 430-700 nm Optical Grade Calcite 100,000:1
In Stock
$958
glan-thompson calcite polarizer model 10gt04
$958
2 Weeks
10GT04AR.16 25.4 mm 650-1000 nm Optical Grade Calcite 100,000:1
2 Weeks
$958
glan-thompson calcite polarizer model 10gt04
$958
In Stock
10GT04AR.18 25.4 mm 1000-1550 nm Optical Grade Calcite 100,000:1
In Stock
$958
$1,029
In Stock
5524 25.4 mm 400-700 nm Optical Grade Calcite 100,000:1
In Stock
$1,029
$1,029
In Stock
5525 25.4 mm 700-1000 nm Optical Grade Calcite 100,000:1
In Stock
$1,029
$1,029
In Stock
5526 25.4 mm 1000-1600 nm Optical Grade Calcite 100,000:1
In Stock
$1,029

Features

Glan-Thompson Polarizer Construction

Our Glan-Thompson polarizers are fabricated using two matching select-grade calcite prisms with their hypotenuses cemented to one another to form a rectangular optic. The cemented prism pair is assembled into a black anodized aluminum housing. The housing is marked to indicate the polarization axis of the transmitted beam. The rejected component of the beam is totally internally reflected and eventually absorbed by the anodized aluminum walls of the housing.

How Glan-Thompson Calcite Polarizers Work

Glan-Thompson prisms are formed using two identical calcite prisms with hypotenuses cemented to one another to form a surface that efficiently transmits one polarization state specifically. The prisms have the same optic axis orientation as one another, which is perpendicular to the plane of reflection (the shared hypotenuse). Light that is s-polarized with respect to the reflective hypotenuse experiences the higher ordinary refractive index of calcite. Because calcite has a large index difference between extraordinary and ordinary rays, the polarizer has a fairly wide range of acceptance angles that result in transmission of only highly pure p-polarized light. Thus Glan Thompson prisms have a wide usable acceptance angle and are especially well suited for use with diverging and converging beams.

Mounting the Aluminum Housing

The Glan-Thompson polarizer has a black anodized aluminum housing. The knurl ring found at the center of the housing will unscrew to yield a 1.063-20 thread. This thread conveniently screws into popular rotation stages such as the 481-A, RS65 or RSP-1T.