Abstract We present, for the first time, the use of graphene layers on the surface of transparent samples (glass) to improve laser-induced breakdown spectroscopy (LIBS) performance. Our results show that the presence of few-layer graphene allows the optical emission of glass to be observed at lower irradiance than conventional LIBS. This effect is discussed in the frame of the absorption of the laser pulse by the graphene and the heat transfer to the beneath the sample. It is reported that the LIBS intensity increases with the number of graphene layers when it ranges from 6 to 15 layers. The surface of the sample after LIBS revealed that the graphene was almost completely removed after one pulse without causing apparent visible damage to the sample. The proposed method to improve LIBS in order to obtain a compelling characterization of transparent samples is both easy and cheap to implement.

中文翻译：

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通过少层石墨烯涂层增强玻璃的激光诱导击穿光谱

摘要 我们首次提出在透明样品（玻璃）表面使用石墨烯层来提高激光诱导击穿光谱 (LIBS) 性能。我们的结果表明，少层石墨烯的存在允许在比传统 LIBS 更低的辐照度下观察到玻璃的光发射。在石墨烯对激光脉冲的吸收和向样品下方的热传递的框架中讨论了这种效应。据报道，当石墨烯层数为 6 到 15 层时，LIBS 强度随着石墨烯层数的增加而增加。LIBS 后的样品表面表明，在一个脉冲后石墨烯几乎被完全去除，而没有对样品造成明显的可见损伤。