Influence of tip geometry on the spatial resolution of tip enhanced Raman mapping

Zhang Chao¹, Chen Bao-Qin², Li Zhi-Yuan^{1, †,}

The dependence of the scanning resolution on the tip height considering the molecule self-interaction, where the molecular polarizability β = 1.5β₀ and the tip apex radius is 10 nm. The molecular dipole is set at r_z = 1.0 nm.