| 
 Substrate Material:  | 
 Crystal Quartz  | 
| 
 Outer Dimension:  | 
 15.0x15.0, +/-0.05mm,unmounted  | 
| 
 Waveplate Design:  | 
 Low-order (1st order; n=1, i.e. 1.5-labmda designed), Half-wave @ 532nm  | 
| Crystal thickness: | 
86.7um  | 
| 
 Optical Axis Direction:  | 
 45-deg angled with edges surfaces    | 
| 
 Parallelism:  | 
 < 3 arc seconds  | 
| 
 Retardance Accuracy(typ):   | 
 < Lambda/300 @ designed wavelength 532nm  | 
| 
 Wavefront Distortion:  | 
 < Lambda/10 at designed wavelength  | 
| 
 Surface Quality:  | 
 20/10 scratch and dig  | 
| 
 Damage Threshold:  | 
 2J/cm2 @ 10ns 1064nm  | 
| 
 AR Coating/Both Surfaces:  | 
 Uncoated  |