Abstract
The plasmon-induced nonlinear response has attracted great attention in micro-nano optics and optoelectronics appli-cations,yet the underlying microscopic mechanism remains elusive.In this study,the nonlinear response of gold nanoclus-ters when exposed to a femtosecond laser pulse was investigated using time-dependent density functional theory.It was observed that the third-order tunneling current was augmented in plasmonic dimers,owing to a greater number of electrons in the dimer being excited from occupied to unoccupied states.These findings provide profound theoretical insights and enable the realization of accurate regulation and control of nonlinear effects induced by plasmons at the atomic level.
基金项目
国家重点研发计划(2020YFA0211300)
国家重点研发计划(2021YFA1201500)
国家自然科学基金(U22A6005)
国家自然科学基金(92150110)
国家自然科学基金(12074237)
国家自然科学基金(12304426)
陕西省自然科学基金(2024JC-JCQN-07)
Fundamental Science Foundation of Shaanxi(22JSZ010)
中央高校基本科研业务费专项(GK202201012)
中央高校基本科研业务费专项(GK202308001)
维普
万方数据