纳米线中的奇异掠共振
Exotic Grazing Resonances in Nanowires
摘要：
我们调查电磁散射纳米线和揭示的第一次，出现了一个家庭的异国情调的共振，或增强的领域，源波接近掠入射。与金属纳米线中发现的众所周知的表面等离子体共振相比，这些掠射共振可以具有更高的Q因子、更宽的带宽，并且更不容易受到材料损失的影响。然而，与表面等离子体共振相反，这些掠射共振可以在电介质和金属纳米线中被激发，并且对入射波的偏振状态不敏感。这种特殊的共振效应源于通过与圆柱形纳米线的方位角一阶传播模式耦合的相干散射连续模式的相互作用来激发长程引导表面波。这里揭示的纳米线共振现象可以用于广泛的科学领域，包括：超材料设计，纳米光子集成，纳米天线和纳米传感器。
英文摘要：
We investigate electromagnetic scattering from nanoscale wires and reveal for the first time, the emergence of a family of exotic resonances, or enhanced fields, for source waves close to grazing incidence. These grazing resonances can have a much higher Q factor, broader bandwidth, and are much less susceptible to material losses than the well known surface plasmon resonances found in metal nanowires. Contrary to surface plasmon resonances however, these grazing resonances can be excited in both dielectric and metallic nanowires and are insensitive to the polarization state of the incident wave. This peculiar resonance effect originates from the excitation of long range guided surface waves through the interplay of coherently scattered continuum modes coupled with the azimuthal first order propagating mode of the cylindrical nanowire. The nanowire resonance phenomenon revealed here can be utilized in broad scientific areas, including: metamaterial designs, nanophotonic integration, nanoantennas, and nanosensors.
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。
