Cemented zero order waveplate is constructed by two quartz plates with their fast axis crossed, the two plates are cemented by UV epoxy. The difference in thickness between the two plates determines the retardance. Zero order waveplates offer a substantially lower dependence on temperature and wavelength change than multi-order waveplates.

Better Temperature Bandwidth
Wide Wavelength Bandwidth
Both Sides AR Coated
RoHS Compliant

Specifications

Material Crystal Quartz
Dimension Tolerance +0.0/-0.2mm
Wavefront Distortion λ/8@632.8nm(just for single plate)
Retardation Tolerance λ/300
Parallelism <1 arc second(just for single plate)
Surface Quality 20/10 scratch and dig
Clear Aperture >90% central area
Standard Wave quarter-wave(λ/4), half-wave(λ/2)
AR Coating R<0.25%@central wavelength
Damage Threshold >500mJ/cm2, 20ns, 20Hz @1064nm