显微共焦拉曼光谱在宝石鉴定中的应用

The application of the confocal micro-Raman in the gemstone identification

探讨显微共焦拉曼光谱鉴定宝石的可行性、可靠性.结果表明,根据对宝石本体的拉曼测试很容易识别真假宝石;而用显微共焦系统对微小包裹体的测量可提供宝石是天然或人工改善的信息,甚至可追踪宝石的产地;拉曼光谱的半高宽,即声子"寿命"可提供宝石是天然或合成的信息;宝石的光荧光光谱也可提供样品的珍贵信息,也可据此判明天然宝石或人工合成宝石.

The possibility and reliability of gemstone identification by the confocal-micro-Raman technique.Results show that it is easy to identify the false gemstone in bulk samples,while the measurements from small inclusions can provide valuable information on the origin of the gemstones.The FWHH of spectrum also can provide valuable information.It is found that the fluorescence spectrum recorded at the same with the Raman spectrum also has valuable information for the identification of the natural or synthetical.