KD*P crystal Jun 4, 2012
Thatshigh Photoelectric Technology Co., Ltd.
677 Tian-chen Rd.
DKDP crystals are grown by a water-solution method at usual level of deuteration >98%. The crystal is extremely hygroscopic and deliquascent.
Deuterated potassium dihydrogen phosphate (KD2PO4) or DKDP single crystals are widely used in non-linear optics as the second, third and fourth harmonic generators for Nd:YAG and Nd:YLF lasers. They are also found in electro-optical applications as Q-switches for Nd:YAG, Nd:YLF, Alexandrite and Ti-sapphire lasers, as well as for Pockels cells.
Angle tolerance: 10 arc minutes
Scratch/Dig code: better than 20/ 10 to MIL-PRF-13830B
Flatness: less than λ/8 @ 633nm
Clear aperture: central 90% of the diameter
No visible scattering paths or centers when inspected by a 50mW green laser
Parallelism: better than 15 arc seconds
Perpendicularity: ≤10 arc minutes