Guiding and focusing of electromagnetic fields with wedge plasmon polaritons.
作者信息
Moreno Esteban, Rodrigo Sergio G, Bozhevolnyi Sergey I, Martín-Moreno L, García-Vidal F J
机构信息
Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
出版信息
Phys Rev Lett. 2008 Jan 18;100(2):023901. doi: 10.1103/PhysRevLett.100.023901. Epub 2008 Jan 14.
Abstract
We study theoretically electromagnetic modes guided by metallic wedges at telecom wavelengths. These modes are found to exhibit superior confinement while showing similar propagation loss as compared to other subwavelength guiding configurations. It is also shown that mode focusing can be realized by gradual modification of the wedge geometry along the mode propagation direction.
摘要
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