Zero Order Dual Waveplates are made of crystalline quartz with their fast axes crossed. The difference in thickness between the two plates determines the retardance. Our Zero Order Dual Waveplates are design for Ti:Sapphire and Yb:doped laser material application. Waveplate rotates fundamental wavelength by λ/2, while second harmonic rotated by λ and its polarization remains unchanged.
Custom design waveplates are available