Temperature dependences of the second order susceptibilities in the novel borate LiCsB4O7 single crystal

We have measured the temperature variance of the second order susceptibilities for the LiCsB
₄
O
₇
borate. Our measurement show that at the temperature of about 225 K, the second order susceptibilities show its maximal signal of about 1.15 pm/V with accuracy up to 0.08 pm/V. This measurement was done using Nd-YAG laser of 7 ns pulse-width at 1064 nm with frequency repetition 1 Hz as fundamental ones.