Trapping of surface plasmon waves in graded grating waveguide system
2012; American Institute of Physics; Volume: 101; Issue: 1 Linguagem: Inglês
10.1063/1.4733477
ISSN1520-8842
AutoresGuoxi Wang, Hua Lü, Xueming Liu,
Tópico(s)Photonic Crystals and Applications
ResumoWe have proposed a graded grating plasmonic system with a significant slow-light effect for the propagation of high-confinement surface plasmon (SP) wave. Theoretical analysis and numerical simulations show that the localized position of SP wave in the plasmonic waveguide is dependent on the operating frequency. It is found that the slow-light effect exhibits an obvious enhancement with propagation. The proposed ultracompact configuration offers the advantage of a large trapping bandwidth of 90 THz, which may find excellent applications on slow-light systems, especially optical buffers.
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