Glan-Thompson prism
Thompson Polarizer Glan Thompson Polarizer is made of two α-BBO or calcite prisms cemented together. It has a wavelength from 200nm to 2300nm. α-BBO polarizer can be used from about 200nm to 1100nm, and calcite polarizer can be used from 350nm to 2300nm. This type polarizer has higher extinction ratio than air spaced polarizer. And it has the widest field angle of any design. For example, α-BBO Glan Thompson Polarizer has an angular field lager than 15 degree.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | α-BBO，Calcite |
| Wavelength Range [Material=α-BBO] | 200-1100 nm |
| Extinction Ratio [Material=α-BBO] | ＜5×10⁻⁶ |
| Wavelength Range [Material=Calcite] | 350-2300 nm |
| Extinction Ratio [Material=Calcite] | ＜5×10⁻⁶ |
| Surface Quality | 10/20 |
| Beam Deviation | ＜3 |
| Wavefornt Distortion [633nm] | λ/4 |
| Damage Threshold | ＞200 |
| Coating | Single Layer MgF₂ |
| Holder | Black Anodized Aluminum |
| angular field [α-BBO Glan Thompson; For example in the body text] | >15 degree |
Key Features
Datasheet
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