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Nonlinear absorption properties of silicene nanosheets

机译:硅纳米液的非线性吸收性能

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As the cousins of graphene, i.e. same group IVA element, the nonlinear absorption (NLA) properties of silicene nanosheets were rarely studied. In this paper, we successfully exfoliated the two-dimensional silicene nanosheets from bulk silicon crystal using liquid phase exfoliation method. The NLA properties of silicene nanosheets were systemically investigated for the first time, as we have known. Silicene performed exciting saturable absorption and two photon absorption (2PA) behavior. The lower saturable intensity and larger 2PA coefficient at 532 nm excitation indicates that silicene has potential application in ultrafast lasers and optical limiting devices, especially in visible waveband.
机译:作为石墨烯的表兄弟,即相同的IVA元素,很少研究硅纳晶片的非线性吸收(NLA)性质。 在本文中,我们使用液相剥离方法成功地将二维硅纳芯从散装硅晶体中脱落。 如我们所知,首次对硅纳米片的NLA性质进行全系统研究。 硅烯进行激动的可饱和吸收和两个光子吸收(2Pa)行为。 532nm激发的较低饱和强度和较大的2Pa系数表示硅片在超快激光器和光学限制装置中具有潜在的应用,尤其是可见波带。

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