Metastable electronic states and nonlinear response for high-intensity optical pulses
Metastable electronic states and nonlinear response for high-intensity optical pulses
复制标题
高强度光脉冲的亚稳态电子态和非线性响应
DOI：
10.1364/optica.1.000323
复制
发表时间：
2014
影响因子：
2.9
通讯作者：
E. Wright
中科院分区：
文献类型：
--
作者：
M. Kolesik;Jennifer M. Brown;A. Teleki;P. Jakobsen;J. Moloney;E. Wright
在本文中，我们提出并证明，超快的非线性光学响应的原子可以准确地计算亚稳态的解决方案的定态薛定谔方程，包括准静态的外加电场。我们首先开发的方法的上下文中的一个完全可溶的一维原子模型与δ函数的潜力，因为这使得精确的超快非线性光学响应和我们的近似方法之间的比较，无论是在绝热近似和超越。然后将这些想法应用于三维类氢原子，并在亚稳态方法和非共振激发的薛定谔方程模拟之间产生类似的极好的一致性。最后，我们的方法产生了一个模型的超快非线性光学响应没有自由参数。它可以潜在地取代目前用于光学折射的光-物质相互作用处理，我们提出了一个应用于飞秒脉冲传输的数值例子。
In this paper we propose and demonstrate that the ultrafast nonlinear optical response of atoms may be accurately calculated in terms of metastable states obtained as solutions of the stationary Schrodinger equation including the quasi-static applied electric field. We first develop the approach in the context of an exactly soluble one-dimensional atomic model with delta-function potential, as this allows comparison between the exact ultrafast nonlinear optical response and our approximate approach, both in adiabatic approximation and beyond. These ideas are then applied to a three-dimensional hydrogen-like atom and yield similar excellent agreement between the metastable state approach and simulations of the Schrodinger equation for off-resonant excitation. Finally, our approach yields a model for the ultrafast nonlinear optical response with no free parameters. It can potentially replace the light–matter interaction treatment currently used in optical filamentation, and we present a numerical example of application to femtosecond pulse propagation.
影响因子：
3.3
作者：
Richter, Maria;Patchkovskii, Serguei;Ivanov, Misha
通讯作者：
Ivanov, Misha