Near field evidence of backward surface plasmon polaritons on negative index material boundaries

作者：Cuevas Mauro^*; Grunhut Vivian; Depine Ricardo A

来源：Physics Letters, Section A: General, Atomic and Solid State Physics , 2016, 380(47): 4018-4021.

DOI：10.1016/j.physleta.2016.10.013

• Surface plasmon polaritons
• Negative index material
• Metamaterials
• Plasmonics
• Backward propagation

We present a detailed analysis about the electromagnetic response of a metamaterial surface with a localized defect. The excitation of electromagnetic surface waves leads to a near-field distribution showing a periodic dependence along the metamaterial surface. We find that this periodic pattern provides a direct demonstration of the forward or backward surface wave propagation.

• 出版日期2016-12-9