Glan Thompson Linear Polarizing Cubes (CGTO)
Large Acceptance Angle
- High Polarization Purity
- Low Power Use
- Cemented Cubes
Glan Thompson polarizers are cemented Glan prisms. They use the strong bi-refringence of natural crystal calcite to produce a high degree of p-polarization in the transmitted beam. These polarizers
provide an extinction ratio of 500,000 :1. They have a wide angular field of view almost twice that of Glan Taylor polarizers. Mounted in a metal cell they are surrounded by an opaque absorbing compound which prevents the egress of the rejected light.
Material: |
Laser Grade Crystal Calcite |
Surface Quality: |
<20/10 |
Beam Deviation: |
< 3 arc min |
Transmitted Wavefront: |
< λ / 4 @ 633 nm |
Diameter Tolerance: |
< ± 0.20 mm |
Extinction Ratio: |
>500,000:1 |
AR Coating |
Single layer MgF2 on all entrance & exit surfaces |
Transmission Efficiency: |
Tp<95% |
Wavelength Range: |
350 nm – 2300 nm |
Housing: |
Black anodized Aluminum |
Damage Threshold: |
CW : > 500 W / cm² Pulsed: > 1 J / cm² |