Synthesis, Crystal Structure, Thermal Behavior and Photoluminescent Property of Complex [Zn(L)(SO4)]·0.5H2O

Complex [Zn(L)(SO4)]·0.5H2O (L= 2-(2-chloro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline) has been synthesized under hydrothermal conditions. The compound was characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21 /n with a = 9.9916(7), b = 12.3834(9), c = 29.259(2) , β = 97.7720(10)°, V = 3587.0(4)3 , Z = 2, C76H41Cl4F4N16O9S2Zn2 , Mr = 1734.91, Dc = 1.606 g/cm 3 , F(000) = 1754, μ(MoKa) = 0.959 mm -1 , R = 0.0492 and wR = 0.1385. The asymmetric unit of 1 contains one Zn(II) atom, two L ligands, one sulfate anion and half a water molecule. Each Zn(II) atom is five-coordinated by four nitrogen atoms from two different L ligands and one sulfate oxygen atom in a tetragonal pyramidal coordination environment. The N-H···O hydrogen bonds link the discrete structure of 1 into a 2D supramolecular architecture. The photoluminescent property of 1 has also been studied in the solid state at room temperature.     

基于LOA-XGM波长转换器消光比特性的数值分析

建立了基于一种新型光放大器（线性光放大器）的交叉增益调制波长转换理论模型.对交叉增益调制波长转换器同向工作方式下的输出消光比进行了分析,讨论了抽运光和探测光的波长和功率等参量对转换后信号消光比特性的影响.结果表明:随着抽运光波长的增加,波长转换器的输出消光比逐渐增大,但对于探测光波长的增加,消光比反而减小；增加抽运光功率和减小探测光功率都可以获得较大的消光比；波长向下转换时的消光比明显优于向上转换时的消光比.