
Specification
Material | Quartz, single crystal |
Usable Wavelength Range | 193 nm â 2000 nm |
Retardation | λ/4, λ/2, λ/8 (other values on request) |
Retardation Tolerance | λ/200 - λ/500 at design wavelength |
Dimensions (round and square) | 2 mm - 50 mm (>50 mm on request) |
Thickness | 0.5 â 1.0 mm typ. (can be specified) |
Parallelism | < 1 arcsec |
Surface Quality | 10-5 scratch-dig |
Typical Absorption | negligible |
Damage Threshold, pulsed | 10 J/cm² |
Damage Threshold, cw | 10 MW/cm² |
Homogeneity of Retardation | λ/500 |
Temperature Dependence of | 0.3% typ. (for 1 mm thickness and center of VIS |
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