论文标题
电子溢出效应对金属纳米结构的三阶光学非线性
Electron spill-out effect on third-order optical nonlinearity of metallic nanostructure
论文作者
论文摘要
在过去的三十年中，使用金属纳米结构的血浆已经成为纳米素化学研究的核心。最近，它的靶标已扩展到非线性光学现象。在非线性状态下，通过电子溢出在纳米结构表面上的量子机械效应显着影响光学响应。量子水动力学理论（QHT）是分析涉及这种量子机械效应的非线性光学响应的有希望的基础。在此，应用QHT计算球形金属纳米结构的三阶光学非线性。结果证明了电子溢出如何强烈影响等离子体的共振和三阶光学非线性。
Over the last three decades, plasmonics using metallic nanostructures has become central to nanophotonics research. Recently, its targets have been extended to nonlinear optical phenomena. In a nonlinear regime, quantum mechanical effects, as exemplified by electron spill-out on the surface of nanostructures, significantly influence the optical response. Quantum hydrodynamic theory (QHT) is a promising basis for the analysis of nonlinear optical responses involving such quantum mechanical effects. Herein, QHT was applied to calculate the third-order optical nonlinearity of a spherical metallic nanostructure. The results demonstrate how electron spill-out strongly affects plasmon resonance and third-order optical nonlinearity.
