Olver plasmon: an accelerating surface wave with various orders
Yanru Chen, Zhifeng Tu, Hongcheng Hu, Junxi Zhang, Zien Feng, Ziyu Wang, Weiyi Hong, Dongmei Deng
Abstract
In this Letter, we introduce a new, to the best of our knowledge, class of accelerating surface plasmonic wave: the Olver plasmon. Our research reveals that such a surface wave propagates along self-bending trajectories at the silver-air interface with various orders, among which Airy plasmon is regarded as the zeroth-order one. We demonstrate a plasmonic autofocusing hot-spot by the interference of Olver plasmons and the focusing properties can be controlled. Also, a scheme for the generation of this new surface plasmon is proposed with the verification of finite difference time-domain numerical simulations.
Topics & Concepts
PlasmonSurface plasmonFinite-difference time-domain methodOpticsSurface plasmon polaritonLocalized surface plasmonPhysicsSurface waveInterference (communication)Computer scienceTelecommunicationsChannel (broadcasting)Orbital Angular Momentum in OpticsPlasmonic and Surface Plasmon ResearchNear-Field Optical Microscopy