financially supported by the National Natural Science Foundation Key Programs of China(No.50732005);the National High Technology Research and Development Program of China(No.2007AA03Z443)。
A high-quality ZnGeP_(2)(ZGP)single crystal with large size ofΦ30 mm×80 mm was grown by a modified vertical Bridgman method.ZGP wafers were annealed with ZGP polycrystalline powder for 300 h at 550,600 and 650℃,res...
financially supported by the National Natural Science Foundation of China (No. 50732005);the National High Technology Research and Development Program of China (No. 007AA03Z443)
The performances of second harmonic gen eration (SHG) and optical parametric oscillator (OPO) in CdGeAs2 crystal are strongly influenced by surface quality. In this paper, the surfaces of samples were treated by mecha...