Multiple Order λ/2 Waveplates(Retarders)

The thickness of multiple order waveplates is equal to multiple full wave thickness plus one required retardance thickness. Multiple order waveplate is easy to produce, but they are sensitive to temperature, wavelength and incident angle. We provide multiple order waveplates are made of quartz crystals. Retardance includes λ/2 and λ/4.

Material:Quartz Crystal

Parallelism:＜1 arcsec

Diameter Tolerance:+0/-0.1mm

Surface Quality:20/10

Retardance Tolerance:λ/300

Wavefront Aberration:λ/8@633nm

Clear Aperture CA (mm):Center90%

AR Coating:R＜0.2%@Designed Wavelength