Abstract: Nonlinear optical crystal Cd3Zn3B4O12 was obtained by top seeded solution growth (TSSG) method using PbO-0.25B2O3 as flux. Transmission spectrum shows the UV cutoff for the as-grown crystal is about 310 nm. Second-harmonic generation (SHG) property measured by the Kurtz-Perry method indicates that Cd3Zn3B4O12 crystal could be phase matchable and the SHG efficiency is about 5 times as large as that of KDP. The surface damage threshold of the crystal is 840 MW/cm2 at 1064 nm for 10 ns. Differential thermal analysis confirms that Cd3Zn3B4O12 tends to decompose upon its melting point, which is the major factor constraint to grow high quality Cd3Zn3B4O12 crystal.

Key words: Nonlinear optical crystal Cd3Zn3B4O12 was obtained by top seeded solution growth (TSSG) method using PbO-0.25B2O3 as flux. Transmission spectrum shows the UV cutoff for the as-grown crystal is about 310 nm. Second-harmonic generation (SHG) property measured by the Kurtz-Perry method indicates that Cd3Zn3B4O12 crystal could be phase matchable and the SHG efficiency is about 5 times as large as that of KDP. The surface damage threshold of the crystal is 840 MW/cm2 at 1064 nm for 10 ns. Differential thermal analysis confirms that Cd3Zn3B4O12 tends to decompose upon its melting point, which is the major factor constraint to grow high quality Cd3Zn3B4O12 crystal.