• Wide Field of View: 40° Typical
• High Extinction Ratio: 100,000:1
• 350 nm to 2.3 µm Operation for Uncoated Prisms
• Highest Grade Optical Calcite
• Cemented Prisms
• Damage Threshold: 1 W/cm²

This Thorlabs' unmounted Glan-Thompson calcite polarizer offers the widest field of view of the calcite polarizers while maintaining a high extinction ratio. This unmounted prism is ideal for custom appications; a version mounted in a round aluminum housing is also available. The GTH10 polarizer has a 10 mm x 10 mm aperture. Both an uncoated and coated version is available. This uncoated polarizer is designed for use in the 350 nm to 2.3 µm range. This Glan-Thompson polarizer consists of two cemented prisms made from the highest optical grade calcite. Unpolarized light enters the polarizer, then is split at the intersection of the two crystals allowing s-polarized (e-ray) light to continue and p-polarized light (o-ray) to be absorbed by the housing. Due to the large field of view, this polarizer can be used for highly converging or diverging beams.

• Extinction Ratio: 100,000:1
• Material: High Optical Grade Calcite
• Wavefront Distortion: ≤λ/4 Over Clear Aperture
• Surface Quality: 20-10 Scratch-Dig
• Wavelength Range: 350 nm to 2.3 µm
• Aperture: 10 mm x 10 mm
• Dimensions (C): 33 mm
• Dimensions (D): 11 mm