Frequently Asked Questions

The waveplate is made of crystal quartz and has a dimension tolerance of +0.0/-0.2mm. It has a wavefront distortion of λ/8@632.8nm (just for single plate) and a retardation tolerance of λ/300. The parallelism is <1 arc second (just for single plate) and the surface quality is 20/10 scratch and dig. It has a clear aperture of >90% central area and comes with both sides AR coated. It is also RoHS compliant.

A cemented zero order waveplate is constructed by two quartz plates with their fast axis crossed, and 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. They also have better temperature bandwidth and wide wavelength bandwidth.

This waveplate can produce quarter-wave (λ/4) and half-wave (λ/2) waves.

The waveplate has a damage threshold of >500mJ/cm2, 20ns, 20Hz @1064nm.

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