Waveplates (Phase Retardation Plates)
Waveplates are made from materials which exhibit birefringence. The velocity of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. This difference in velocities gives a rise to phase difference. At any specific wavelength the phase difference is governed by the thickness of the retarder - waveplate. We offer: Crystalline quartz, Achromatic (Broadband), Mid-IR and High Power Waveplates.