A general method for large-scale fabrication of Cu nanoislands/dragonfly wing SERS flexible substrates

Wang Yuhong¹, Wang Mingli^{1, †}, Shen Lin², Zhu Yanying¹, Sun Xin¹, Shi Guochao¹, Xu Xiaona¹, Li Ruifeng¹, Ma Wanli³

(color online) (a) The FDTD model of the DW50 substrate. (b) The calculated planes. (c) and (d) Spatial distributions of the electric field intensity for the x–y and x–z planes, respectively, defined in (b).