论文标题
球体在贝塞尔光束散射时表现出极高的Q伪模型
Manifestation of Extremely High-Q Pseudo-Modes in Scattering of a Bessel Light Beam by a Sphere
论文作者
论文摘要
发现了麦克斯韦方程的确切分析解决方案的贝塞尔光束散布在球体上。发现了散射的功率，存储的能量和广义Q因子随频率的函数，球体半径，介电常数和贝塞尔束角。在该溶液的基础上，通过计算广义Q因子来提取介电球的模式和伪模型。结果表明，贝塞尔束参数的适当选择可以提供单个给定模式的激发和伪模型的辐射Q因子的无限值。
The exact analytical solution of Maxwell equations for a Bessel light beam scattered by a sphere is found. Scattered power, stored energy and a generalized Q factor as a function of frequency, the sphere radius, permittivity, and the Bessel beam angle are found. On the base of this solution, modes and pseudo-modes of a dielectric sphere are extracted by calculation of the generalized Q factor. It is shown that an appropriate choice of Bessel beam parameters can provide excitation of a single given mode and an unlimited value of the radiative Q factor of pseudo-modes.
