Specification
| Retarder Material | Muscovite Mica |
| Substrate Material | N-BK7 |
| Transmitted Wavefront: | <1 Lambda at 633 nm for diameters 25.4 mm |
| Clear Aperture: | >85% of central diameter |
| Surface Quality | 40-20 scratch dig |
| Diameter D Tolerance: | +0/-0.25 mm |
| Retardation Tolerance: | /10 for 550 nm types |
| Thickness t Tolerance: | +/- 0.25 mm |
| Damage Threshold (uncoated): | 0.7 J cm, 11 ns, 100 Hz @ 1064 nm |
| Temperature Coefficient of Retardation per C | negligible |
| Part Number | Wavelength Range | Center Wavelength | Retardation | Diameter | Thickness t |
|
| nm | nm |
| mm | mm |
| MA0100455 | 400-700 | 550 | /4 | 10.0 | 2.5 |
| MA0200455 | 400-700 | 550 | /4 | 20.0 | 2.5 |
| MA0250455 | 400-700 | 550 | /4 | 25.0 | 2.5 |
| MA0254455 | 400-700 | 550 | /4 | 25.4 | 2.5 |
| MA0500455 | 400-700 | 550 | /4 | 50.0 | 3.5 |
| MA0100255 | 400-700 | 550 | /2 | 10.0 | 2.5 |
| MA0200255 | 400-700 | 550 | /2 | 20.0 | 2.5 |
| MA0250255 | 400-700 | 550 | /2 | 25.0 | 2.5 |
| MA0254255 | 400-700 | 550 | /2 | 25.4 | 2.5 |
| MA0500255 | 400-700 | 550 | /2 | 50.0 | 3.5 |
| MA0100485 | 700-1100 | 850 | /4 | 10.0 | 2.5 |
| MA0200485 | 700-1100 | 850 | /4 | 20.0 | 2.5 |
| MA0100285 | 700-1100 | 850 | /2 | 10.0 | 2.5 |
| MA0200285 | 700-1100 | 850 | /2 | 20.0 | 2.5 |