Waveplates also known as retardation plates are optical element having two principal axis, slow and fast, that resolve an incident polarized beam into two mutually perpendicular polarized beams. The emerging beam recombines to form a particular single polarized beam. Retardations plates produce full, half, quarter and octadic-wave retardations.
Low Order Waveplates are much better than the multi-order wave-plates because of its thinner thickness (less than 0.5mm). Better temperature (38℃), Wavelength (1.5nm) and incident angle (4.5°) bandwidth and high damage threshold make it widely used in common application. Also, it is economical.
| ATTRIBUTE | SPECIFICATIONS |
| material | Crystal Quartz |
| DIAMETER TOLERANCE | +0.0, -0.1mm |
| wavefrnt distortion | λ/8 |
| retardation tolernace | λ/500 |
| wavelength range | 240-2100nm |
| parallelism | < 1 arc second |
| SURFACE QUALITY | 20/10 scratch and dig |
| COATING | With AR coating on outside surfaces |
