Mica Waveplate / WPM
Mica waveplates are zero-order (first-order) retardation plates (phase plates) which are designed at 550nm wavelength and effective from 400 − 700nm. A mica sheet is sandwiched between optical glass discs for protection and ease of use.
Common Specifications
| Material | A mica sheet is sandwiched between optical glass discs for protection and ease of use |  |
|---|---|---|
| Wavelength Range | 400 － 700nm | |
| Transmitted Wavefront Distortion | 2λ λ＝550nm | |
| Incident Angle | 0° | |
| Design Wavelength | 580nm | |
| Theoretical Retardation | λ/4: 145nm λ/2: 290nm |
|
| Surface Quality (Scratch-Dig) | 40 - 20 |
| Schematic λ/2 | Schematic λ/4 | Outline Drawing |
|---|---|---|
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 |
 |
| λ/2 | |||
|---|---|---|---|
| Part Number | Diameter φD | Thickness t | |
| WPM-10-2P | φ10mm | 2.5mm | |
| WPM-20-2P | φ20mm | 2.5mm | |
| WPM-25-2P | φ25mm | 2.5mm | |
| WPM-30-2P | φ30mm | 2.5mm | |
| WPM-40-2P | φ40mm | 3.5mm | |
| WPM-50-2P | φ50mm | 3.5mm | |
| λ/4 | |||
|---|---|---|---|
| Part Number | Diameter φD | Thickness t | |
| WPM-10-4P | φ10mm | 2.5mm | |
| WPM-20-4P | φ20mm | 2.5mm | |
| WPM-25-4P | φ25mm | 2.5mm | |
| WPM-30-4P | φ30mm | 2.5mm | |
| WPM-40-4P | φ40mm | 3.5mm | |
| WPM-50-4P | φ50mm | 3.5mm | |
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