Airspaced Zero-order Waveplate

Material: Crystal Quartz
Dimension Tolerance: +0.0, -0.2 mm
Wavefront Distortion: Lambda/8 at 632.8nm
Retardation Tolerance: <λ/500 (typical) Wavelength Range: 240-2100 nm
Parallelism: <1 arc second Surface Quality: 20-10 scratch and dig
AR/AR Coating: R<0.2% at central wavelength * Double Retardation Plates * Broad Spectral Bandwidth * Wide Temperature Bandwidth * High Damage Threshold * AR coated and Mounted