arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.0245physics.optics
收藏

共振态展开在二维开放光学系统中的应用

Resonant state expansion applied to two-dimensional open optical systems

M. B. Doost, W. Langbein, E. A. Muljarov

摘要:

共振态展开(RSE)是电动力学中的一种严格微扰方法,它被应用于二维开放光学系统。解析可解的均匀介质圆柱体被用作未扰动系统,其格林函数被证明包含在复频率平面,这是包括在RSE基础的削减。利用RSE方法计算了半圆柱、薄膜和细线微扰等几种不同轨道动量的微扰模式的复本征频率,证明了该方法的准确性和收敛性。细导线扰动的谐振状态再现近似的解析解。

英文摘要:

The resonant state expansion (RSE), a rigorous perturbative method in electrodynamics, is applied to two-dimensional open optical systems. The analytically solvable homogeneous dielectric cylinder is used as unperturbed system, and its Green's function is shown to contain a cut in the complex frequency plane, which is included in the RSE basis. The complex eigenfrequencies of modes are calculated using the RSE for a selection of perturbations which mix unperturbed modes of different orbital momentum, such as half-cylinder, thin-film and thin-wire perturbation, demonstrating the accuracy and convergency of the method. The resonant states for the thin-wire perturbation are shown to reproduce an approximative analytical solution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑