【摘要】 作为供氮体的含氮化合物会直接影响激光作用下形成的高氮化合物的种类。为了深入认识不同含氮化合物供氮体对形成高氮化合物的影响，本研究利用脉冲Nd:YAG激光对氮气氛围中的NaN₃、Si₃N₄和P3N₅三种典型含氮化合物进行溅射，使用光谱仪记录并分析了瞬态中间产物的等离子体特性及其演化过程。研究结果表明，激光烧蚀NaN₃产生的氮原子（NⅠ）、一价氮离子（NⅡ）和三价氮离子（NⅣ）数量最多，氮等离子体存在时间也最长，NⅠ、NⅡ和NⅢ的最大存在时间分别达到39400,39400 ns和19450 ns。在三种目标供氮体中，激光溅射氮气中NaN₃最有可能形成高含氮或全氮原子簇。更多还原

【Abstract】 Nitrogen-containing compounds, acting as nitrogen donors, directly influence the types of high nitrogen compounds formed under laser irradiation. To understand the impact of various nitrogen-containing compounds on the formation of high-nitrogen compounds, three representative compounds NaN₃, Si₃N₄ and P₃N₅ were ablated using a pulsed Nd: YAG laser in a nitrogen atmosphere. The plasma characteristics and the evolution of the transient intermediates generated by laser sputtering were investigated by transient spectrometer. The findings indicate that the laser ablation of NaN₃ yields the highest number of nitrogen atoms（NⅠ）, monovalent nitrogen ions（NⅡ）, and trivalent nitrogen ions（NⅢ）, with the longest duration of nitrogen plasma. The lifetimes of NⅠ, NⅡ, and NⅢ reached 39,400 ns, 39,400 ns, and 19,450 ns, respectively. Among the three nitrogen donors, the laser ablation of NaN₃ in a nitrogen atmosphere is most likely to result in the formation of high-nitrogen or all-nitrogen compounds.更多还原