Based on the contact methods of the two plates, achromatic waveplates are classified into two types: air-spaced and cemented.
Key features:
- Cemented or air spaced
- Broadband wavelength
Capability
Material: | crystal quartz and MgF2 |
Dimension Tolerance: | +0.0, -0.1mm |
Wavefront Distortion: | /4@632.8mm |
Retardation Tolerance: | /100 |
Wavelength Range: | VIS: 465-610nm, NIR: 700-1000nm, IR: 1200-1650nm |
Parallelism: | < 10 arc second |
Surface Quality: | 20-10 scratch & dig |
Coating: | AR/AR, R < 0.2% on both surface at central wavelength |
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