arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.05928physics.optics
收藏

Tamm-Langmuir表面波

Tamm-Langmuir surface waves

K. U. Golenitskii, K. L. Koshelev, A. A. Bogdanov

摘要:

在这项工作中,我们发展了一个理论的表面电磁波定位在界面的周期性金属介质结构。我们已经证明,金属层中等离子体频率的各向异性提升了等离子体振荡的简并性,并打开了一系列光子带隙。这导致了具有奇异态密度的表面波的出现-我们将其称为Tamm-Langmuir波。这样的命名是自然的,因为我们已经发现,它们的性质是非常相似的体朗缪尔和表面塔姆波的属性。根据各向异性参数,Tamm-Langmuir波可以是前向波或后向波。奇异的态密度和色散对结构各向异性的高灵敏度使得Tamm-Langmuir波在纳米光子学和生物传感中具有潜在的应用前景。

英文摘要:

In this work we develop a theory of surface electromagnetic waves localized at the interface of periodic metal-dielectric structures. We have shown that the anisotropy of plasma frequency in metal layers lifts the degeneracy of plasma oscillations and opens a series of photonic band gaps. This results in appearance of surface waves with singular density of states - we refer to them as Tamm-Langmuir waves. Such naming is natural since we have found that their properties are very similar to the properties of both bulk Langmuir and surface Tamm waves. Depending on the anisotropy parameters, Tamm-Langmuir waves can be either forward or backward waves. Singular density of states and high sensitivity of the dispersion to the anisotropy of the structure makes Tamm-Langmuir waves very promising for potential applications in nanophotonics and biosensing.

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。

↑