二次谐波在二维材料结构表征中的应用

夏芳芳, 王发坤, 胡海龙, 许翔, 李阳, 翟天佑

Application of Second Harmonic Generation in Characterization of 2D Materials

XIA Fangfang, WANG Fakun, HU Hailong, XU Xiang, LI Yang, ZHAI Tianyou

图4 二次谐波表征层间堆垛角度

Fig. 4 Characterization of stacking angle between layers by SHG (a) Schematic of SHG process in second harmonic generation of bilayer thin film; (b) Atomic structure of artificially stacked bilayer; (c-d) Optical images for stacked bilayers with different stacking angles and their corresponding SH intensities[42]