Yuan Zhang, Huan Tang, Zhuoyuan Shi, Renxian Li, Bing Wei, Bing Yan, I. Minin, O. Minin
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引用次数: 0
摘要
本文研究了以一定角速度旋转的介质球与平面波相互作用产生的光子钩(PH)。基于瞬时静帧理论和球面坐标下的偏波数列展开法,借助分离变量法,我们得到了绕 z 轴旋转的各向同性均匀介质球在任意方向的平面波照射下的内外电场解析解。本文重点讨论了尺寸参数(ka)、相对折射率(m1)和旋转无量纲参数𝛾对 PH 的影响。这种非互易系统产生的 PH 不仅可用于捕获离轴粒子,而且在低损耗波导、亚衍射分辨率纳米图案和纳米光刻方面也有广阔的应用前景。
Photonic hooks generated by a rotating dielectric sphere
This paper studies the photonic hooks (PH) generated by the interaction of a dielectric sphere rotating at a certain angular velocity with a plane wave. Based on the instantaneous static frame theory and the partial-wave series expansion method in spherical coordinates, with the help of the separated variable method, we obtain the analytical solutions for the internal and external electric fields of a homogeneous isotropic dielectric sphere rotating around the z-axis irradiated by a plane wave of arbitrary direction. This article focuses on the effect of size parameters (ka), relative refractive index (m1), and rotational dimensionless parameters 𝛾 on PH. The PH produced by this non-reciprocal system can be used not only for trapping off-axis particles, but also has promising applications in low-loss waveguiding, subdiffraction-resolution nanopatterning, and nanolithography.