论文标题
非线性光传播的第一原理方法
First-principles method for nonlinear light propagation at oblique incidence
论文作者
论文摘要
我们已经开发了一种计算方法来描述平坦表面上强烈而超短的脉冲的非线性光传播。在该方法中，使用多尺度建模同时解决了宏观光传播和微观电子动力学的耦合方程。微观电子运动由第一原理时间依赖性密度功能理论描述。描述倾斜光传播的宏观麦克斯韦方程被转化为一维波方程。作为该方法的例证，提出了硅薄膜上倾斜发病率的光传播。
We have developed a computational method to describe the nonlinear light propagation of an intense and ultrashort pulse at oblique incidence on a flat surface. In the method, coupled equations of macroscopic light propagation and microscopic electron dynamics are simultaneously solved using a multiscale modeling. The microscopic electronic motion is described by first-principles time-dependent density functional theory. The macroscopic Maxwell equations that describe oblique light propagation are transformed into one-dimensional wave equations. As an illustration of the method, light propagation at oblique incidence on a silicon thin film is presented.
