How about the detail specification of Nd:YVO4 crystal?

1) Orientation: a-cut crystalline direction(+/-0.20)
2) Dimensional tolerance: +/-0.1mm(typical)High precision +/-0.005mm can be available upon request.
3) Wavefront Distortion: </8@633nm
4) Surface quality: better than 20/10 Scratch/Dig per MIL-O-1380A
5) Parallelism: < 10 arc seconds
6) Perpendicularity: < 5 arc minutes
7) Surface flatness: </10 at 632.8nm
8) Clear aperture: Central 95%
9) Chamfer: 0.15x450
10) Damage threshold: over 15J/cm2 (rods without coating) over 700 MW/cm2 (coating)
11) Coating: (1) AR@1064nm, R< 0.1% (see coating 6-1)
(2) AR@1064nm, R< 0.1% & HT@808nm, T>95% (see coating 6-2)
(3) HR@1064nm, R>99.8% & HT@808nm, T>95%(see coating 6-3)
(4) HR@1064nm, R>99.8%, HR@532 nm, R>99% & HT@808 nm, T>95%(see coating 6-4)
(5) AR@1064 nm, R<0.1%, AR@532NM, R<0.3%(see coating 6-5)