The 49-216 from Edmund Optics is a Polymer Waveplate that has a design wavelength of 1064 nm. It has a diameter of 25.4 mm and clear aperture of 10.16 mm. This waveplate has a retardance of lambda/2 with a retardance tolerance of lambda/350 and retardance order of zero. It has a polymer film on N-BK7 substrate and reflection of 0.5%. This waveplate has a surface quality of 40 - 20 and beam deviation of 1 arcmin. It has a damage threshold of 500 W/cm2 and transmitted wavefront of up to lambda/5. This waveplate has a thickness tolerance of ±0.508 mm and dimensional tolerance of ±0.127 mm. It has a mount thickness of 6.35 mm and is RoHS 2015 & REACH 241 compliant.
