Mica Waveplate / WPM-20-2P
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.
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Part Number
WPM-20-2P
S$409.09
◦These products utilize birefringence of mica and give phase difference of λ/4 (π/2, 90°) or λ/2 (π, 180°) to the input beams. λ/4 plates convert linearly polarization to circularly and circularly polarization to linearly. λ/2 plates convert the direction of polarization in 90 degrees.
◦Usually linearly polarized beams are input to the waveplates in a leaning of 45 degrees against its optical axis.
◦Usually linearly polarized beams are input to the waveplates in a leaning of 45 degrees against its optical axis.
| Catalog Code | W3034 |
|---|---|
| RoHS | Yes |
| CE | No |
| Download Product's Datasheet | |
| Guide | ▶Please contact our Sales Division for customized products. (Customized on size etc.) ▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format). |
| Attention | ▶Mica waveplates cannot be used for high-power laser applications because of their relatively high absorption coefficient and occasional inhomogeneities. ▶Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. ▶If you want to use the polarization measurement, please use the crystal waveplate. WEB Reference Catalog Code/W3032 |
| Thickness t | 2.5mm |
| Surface Quality (Scratch-Dig) | 40−20 |
| Type | λ/2 |
| Wavelength Range | 400～700nm |
| Diameter φD | φ20mm |
| Design wavelength | 580nm |
| Incident angle | 0° |
| Theoretical retardation | 1/4waveplate ; 145nm 1/2waveplate 290nm |
| Transmitted wavefront distortion | 2λ λ＝550nm |
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