Hydrodynamic Modeling of the Ultrafast Nonlinear Optical Response of Metallic Nanostructures

我们提出了一种先进的材料模型来描述金属纳米结构的超快非线性光学响应。该模型包括对金属中传导电子的量子流体动力学处理，最终将耦合到粒子在单元中的方法，以实现混合的理论和计算框架。在与实验伙伴的合作下，这一框架将被应用于非线性混频现象、有质动力非线性以及可以通过定制的光束控制的非线性光电子发射过程。

We propose the development and implementation of an advanced material model for the description of the ultrafast nonlinear optical response of metallic nanostructures. This model comprises a quantum hydrodynamic treatment of the conduction electrons in metals that will eventually be coupled to a particle-in-cell approach in order to realize a hybrid theoretical and computational framework. In cooperation with experimental partners, this framework will be applied to nonlinear wave mixing phenomena, ponderomotive nonlinearities, and nonlinear photoemission processes that may be controlled via tailored beams.