Achromatic waveplates by using two pieces of plates.It is similar to Zero-order waveplate except that the two plates are made from different materials,such as crystal quartz and magnesium fluoride. Since the dispersion of the birefringence can be different for the two materials,it is possible to specify the retardation values at a wavelength range.
Features:
Spectrally Flat Retardance
Operating Ranges from UV to Beyond Telecom Wavelengths
AR Coatings for: 260 – 410 nm, 400 – 800 nm, 690...