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A polarizer is an important optical component that
is widely used in polarizing optics to produce the state
of liner polarization.
Glass Perfection provide Glan-Taylor polarizers, Glan-laser
polarizers, Glan-Thompson polarizers, Wollaston polarizers
amoung others.
Glan-Taylor Polarizer
The Glan-Taylor polarizers are made
from calcite. The two calcite prisms are mechanically
coupled at the hypotenuse. The hyotenuse faces are alighted
parallel and are separated by an air gap.
Specifications:
| Material: |
Calcite |
| Wavelength Range: |
350-2000mm |
| Dimension Tolerance: |
+0.0, -0.25mm |
| Surface Quality: |
40-20 Scratch and dig |
| Beam Deviation: |
<^/4 @ 632.8nm |
| Extinction Ratio: |
<10-5 |
| Field Angle: |
8 degree @632.8mm |
| E-Ray Transmittance: |
>88% |
| Damage Threshold: |
1W/cm squared |
Coating
Single layer MgF2 on input and output surface
Housing
Black anodized aluminium
Glan-Thompson Polarizer
The Glan-Thompson polarisations are made from calcite.
The two calcite prisms are cemented together at the
hypotenuse with an index of refraction matching cement
to reduce the interface surface reflection losses. It
suits for low power. These polarizers have a wide acceptance
angle.
Specifications
| Material: |
Calcite |
| Wavelength Range: |
350-2000mm |
| Dimension Tolerance: |
+0.0, -0.25mm |
| Surface Quality: |
60-40 Scratch and dig |
| Beam Deviation: |
3 arc minutes |
| Wavefront Distortion: |
<^/4@ 632.8mm |
| Extinction Ratio: |
<10-5 |
| Damage Threshold: |
>2 w/cm cw2 |
| Coating: |
Single layer MgF2 on input and output surfaces |
| Housing: |
Black anodized aluminium |
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