中文摘要：

我们由导致激光的故障光谱学(解放) 的炸药的察觉上的最近的工作在这份报纸被考察。我们学习了器官的炸药的导致激光的血浆的物理机制， TNT。在单个光子的刺激下面的 TNT 的解放系列用 MATLAB 被模仿。碳，氢，氧，和氮对血浆温度的原子排放线紧张的变化也被模仿。我们也调查普通无机的爆炸、黑粉末的解决时间的解放系列，在二种包围气氛，表情和氩，并且发现黑色的 O 原子排放线 SBR 的最大的价值搽粉发生在 596 ns 的门延期。我们的工作的另一个焦点在使用象原则部件分析(PCA ) 和部分最少的广场判别式分析(PLS-DA ) 那样的 chemometic 方法把器官的炸药与象塑料那样的器官的材料区分开来上。为分类的一个 PLS-DA 模型被造。TNT 和塑料的七种类型被选择为样品测试模型。试验性的结果证明解放结合了 chemometric 技术有能力从塑料区别器官的炸药。

英文摘要：

Our recent work on the detection of explosives by laser-induced breakdown spectroscopy （LIBS） is reviewed in this paper. We have studied the physical mechanism of laser-induced plasma of an organic explosive, TNT. The LIBS spectra of TNT under single-photon excitation are simulated using MATLAB. The variations of the atomic emission lines intensities of carbon, hydrogen, oxygen, and nitrogen versus the plasma temperature are simulated too. We also investigate the time-resolved LIBS spectra of a common inorganic explosive, black powder, in two kinds of surrounding atmospheres, air and argon, and find that the maximum value of the O atomic emission line SBR of black powder occurs at a gate delay of 596 ns. Another focus of our work is on using chemometic methods such as principle component analysis （PCA） and partial least squares discriminant analysis （PLS-DA） to distinguish the organic explosives from organic materials such as plastics. A PLS-DA model for classification is built. TNT and seven types of plastics are chosen as samples to test the model. The experimental results demonstrate that LIBS coupled with the chemometric techniques has the capacity to discriminate organic explosive from plastics.