a-BBO Glan-Thompson Polarizer 50.230.00009
Glan-Thompson polarizers provide the widest incidence angle of any design. P-polarized light transmits without displacement, while S-polarized rays are reflected and absorbed by the housing wall. Similar to Glan-Taylor polarizers, they have larger incidence angles and longer crystals. They comprise two cemented calcite or α-BBO prisms. Standard and long versions have length-to-aperture ratios of 2.5:1 and 3.0:1, respectively. They offer higher extinction ratios than air-spaced polarizers. UV transmission is limited by absorption in the birefringent material and cement. Calcite and α-BBO versions operate at 350-2300 nm and 200-1100 nm, respectively. The standard version has a 2.5:1 length-to-aperture ratio and an incidence angle greater than ±15 degrees at 589 nm; the long version has a 3:1 ratio and an incidence angle greater than 26 degrees. Two calcite or α-BBO prisms are cemented together. These polarizers offer the widest field of view and suit low-power applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| L/CA | 1.6 |
| Extinction Ratio | <5x10⁻⁶ |
| Field of View | >15 degrees |
| Clear Aperture Dimension | 10.0 mm |
| Outer Diameter | 25.4 mm |
| Length +/-0.1 | 24.5 mm |
Key Features
Datasheet
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