Cemented Zero Order λ/4 Quarter Wave Plate, High Retardance
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Overview:
Cemented zero order wave plate is constructed by two quartz plates with their fast axis crossed. The retardance is determined by the difference in thickness between the two quartz plates.
The main difference between cemented zero order waveplates and other kind of waveplates is they have epoxy on its optical path as the two quartz plates are glued with each other by UV epoxy. However, cemented zero order waveplates are superior in the fact they are less sensitive to temperature and wavelength changes comparing to multiple order waveplates.
Main Features of Cemented Zero Order Wave Plate:
- Low sensitivity to temperature changes
- Broad wavelength bandwidth
- AR coated on both surfaces
- Available for large sizes
General Specifications of Cemented Zero Order λ/4 Quarter Wave Plate:
| Material |
Crystalline Quartz |
| Dimension Tolerance |
+0.0/-0.2mm |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| Wavefront Distortion |
<λ/8@632.8nm |
| Parallelism |
<1 arc seconds |
| Retardation Tolerance |
<λ/300 |
| Standard Wave |
quarter-wave(λ/4)
|
| Coating |
Both sides AR coated, R<0.25% per face @ central wavelength |
| Damage Threshold |
>500mJ/cm2, 20ns, 20Hz @1064nm |
Standard Products of Cemented Zero Order λ/4 Quarter Wave Plate:
| Part Number |
Type |
Diameter (mm) |
Retardation
(λ)
|
Wavelength
(nm)
|
Clear Aperture (mm) |
| WPC412-405 |
Cemented |
12.7 |
λ/4 |
405 |
11.5 |
| WPC425-405 |
Cemented |
25.4 |
λ/4 |
405 |
22.9 |
| WPC438-405 |
Cemented |
38.1 |
λ/4 |
405 |
35 |
| WPC412-633 |
Cemented |
12.7 |
λ/4 |
633 |
11.5 |
| WPC425-633 |
Cemented |
25.4 |
λ/4 |
633 |
22.9 |
| WPC438-633 |
Cemented |
38.1 |
λ/4 |
633 |
35 |
| WPC412-780 |
Cemented |
12.7 |
λ/4 |
780 |
11.5 |
| WPC425-780 |
Cemented |
25.4 |
λ/4 |
780 |
22.9 |
| WPC438-780 |
Cemented |
38.1 |
λ/4 |
780 |
35 |
| WPC412-795 |
Cemented |
12.7 |
λ/4 |
795 |
11.5 |
| WPC425-795 |
Cemented |
25.4 |
λ/4 |
795 |
22.9 |
| WPC438-795 |
Cemented |
38.1 |
λ/4 |
795 |
35 |
| WPC412-852 |
Cemented |
12.7 |
λ/4 |
852 |
11.5 |
| WPC425-852 |
Cemented |
25.4 |
λ/4 |
852 |
22.9 |
| WPC438-852 |
Cemented |
38.1 |
λ/4 |
852 |
35 |
| WPC412-894 |
Cemented |
12.7 |
λ/4 |
894 |
11.5 |
| WPC425-894 |
Cemented |
25.4 |
λ/4 |
894 |
22.9 |
| WPC438-894 |
Cemented |
38.1 |
λ/4 |
894 |
35 |
| WPC412-1310 |
Cemented |
12.7 |
λ/4 |
1310 |
11.5 |
| WPC425-1310 |
Cemented |
25.4 |
λ/4 |
1310 |
22.9 |
| WPC438-1310 |
Cemented |
38.1 |
λ/4 |
1310 |
35 |
| WPC412-1550 |
Cemented |
12.7 |
λ/4 |
1550 |
11.5 |
| WPC425-1550 |
Cemented |
25.4 |
λ/4 |
1550 |
22.9 |
| WPC438-1550 |
Cemented |
38.1 |
λ/4 |
1550 |
35 |
Retardance Graph of Cemented Zero Order Wave Plate:
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405nm Cemented Zero Order Waveplate
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633nm Cemented Zero Order Waveplate
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780nm Cemented Zero Order Waveplate
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795nm Cemented Zero Order Waveplate
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852nm Cemented Zero Order Waveplate
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894nm Cemented Zero Order Waveplate
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1310nm Cemented Zero Order Waveplate
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1550nm Cemented Zero Order Waveplate
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