Crystalline quartz is frequently used for the stringest quality retardation applications. Zero-order waveplates is made by cementing two quartz plate with their fast axes orthogonal to each other. The difference in thickness is equal to either λ/4 or λ/2 for a specified wavelength. Comoared with multiple-order quartz retarders, they are much more insensitive to wavelength, temperature and angle of incidence. Waveplates of other wavelength and sizes are available for custom made.
Material:Crystalline Quartz
Operating Wavelength:355nm-1550nm
Retardance Accuracy:λ/2