|Material||Single crystal quartz and MgF2|
|Clear aperture||Ø 12.7mm|
|Ring mount outer diameter||25.4 +0.0/-0.2 mm|
|Ring mount thickness||8.0±0.2 mm|
|Retardation tolerance||<λ/100 over wavelength range|
|Surface quality||40-20 scratch & dig (MIL-PRF-13830B)|
|Wavefront distortion||<λ/4 @ 633 nm|
|Parallelism||< 1 arcmin|
|AR coating||R < 0.8%|
|Laser damage threshold||>3J/cm2 , 10 nsec, 1064 nm typical|
Achromatic waveplates are made from two different materials: crystal quartz and magnesium fluoride with highly efficient broadband antireflection coatings in an air spaced design.
Retardation tolerance of our achromatic waveplates is better than λ/100 over the entire wavelength range. The flat response of these waveplates is ideal for use with tunable lasers,multiple laser-line systems and other broad spectrum sources.
Our achromatic waveplates are available for four wavelength ranges:VIS (450-680nm), NIR (700-1000nm), 950-1300, nm 1200-1650 nm. The waveplates are provided in a black anodized aluminum housing.