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A Glan–Thompson Polarizer is made of two brifringent prisms which are cemented on their long surfaces. By arranging optical axes parallel to the plane of entrance, total internal reflection of s-polarized light at the air-gap ensures that only p-polarized light is transmitted by the device. The pair of prisms can, therefore, be used as a polarizer.
You may refer to this page (http://www.pmoptics.com/crystals.html) for material properties.
Features:
- High Polarization Purity
- Wide acceptance angle
- Wide wavelength Range
- e-ray passing through with little deviation
Specification:
| Materials |
Alpha-BBO (200~1100nm) or Calcite (350~2300nm) |
| Dimensional Tolerance |
± 0.1mm |
| Extinction Ratio |
Alpha-BBO < 1×10-6 , Calcite < 5×10-5 |
| Angular Filed |
Alpha-BBO > 15°, Calcite > 14° |
| Transmittance |
TP > 95% |
| Flatness |
λ/4 @ 632.8nm |
| Surface Quality |
20 ~ 10 |
| Beam Deviation |
< 3 arc minutes |
| AR coating |
Single Layer MgF2 on input and output surfaces |
| Mount |
Black Anodized Aluminum |
Ordering Information:
| |
A
|
Wavelength
|
01 = 200 ~ 1100 nm for Alpha-BBO |
|
| 02 = 350 ~ 2300 nm for Calcite |
|
| 00 = Special |
|
| |
B
|
Material
|
2 = Calcite
|
|
| |
3 = Alpha-BBO
|
|
| |
0 = Special |
|
| |
C
|
Dimensions
|
01 = 6.0mm(φ1)X15.0mm(φ2)X18.0mm(L) |
|
| |
Check Standard Size Table Below |
|
| |
00 = Custom Dimensions |
|
Standard Size Table for Alpha-BBO only (See the Figure Above):
| |
Dimensions P/N
|
Clear Aperture Φ1 (mm)
|
Outside Diameter Φ2 (mm) |
Length (L:mm) |
| |
01
|
6.0
|
15.0 |
18.0 |
| |
02
|
8.0
|
25.4 |
21.0 |
| |
03
|
10.0
|
25.4 |
24.5 |
| |
04
|
15.0
|
30.0 |
32.5 |
| |
05
|
20.0
|
38.0 |
40.7 |
Standard Size Table for Calcite only :
| |
Dimensions P/N
|
Clear Aperture Φ1 (mm)
|
Outside Diameter Φ2 (mm) |
Length (L:mm) |
| |
01
|
6.0
|
15.0 |
23.0 |
| |
02
|
8.0
|
25.4 |
28.0 |
| |
03
|
10.0
|
25.4 |
33.0 |
| |
04
|
15.0
|
30.0 |
45.5 |
|
