C_(60)氮丙啶衍生物的表征及其光限幅效应

Characterization of N-nitride C_(60) derivatives and its optical limiting properties

研究了叠氮乙酰胺与C60 反应 ,其反应机理为经过一个三唑啉中间体结构形成最终产物 ;分析表征了C60氮乙酰胺 ,通过量化计算确定了氮丙啶闭环结构为热力学稳定结构 ;应用倍频Nd :YAG脉冲激光测试了它的光限幅性能 ,确定其光限幅机制为反饱和吸收 ,长波长 (70 7nm)激光的限幅效果要优于C60 ,表明C60 衍生物是一种非常有希望的激光限幅材料。

The characterization of N acetamide C 60 nitride(N acetamide 1,2 dihydro 1,2 aza fullerene) and its effect on optical limiting were studied. Its mechanism was described as that the objective product was formed through intermediate triazoline. It shows that N nitride structure is more stable in thermodynamics by theoretical study with AM1 SCF MO method. The properties of optical limiting were tested by using double frequency Nd: YAG pulse laser system. It showes that the optical limiting is reverse saturation absorption mechanism and at wavelength of 707 nm, the capacity of optical limiting of the derivative is superior to C 60 .