title: Enhanced magnetic response in a gold nanowire pair array through coupling with Bloch surface waves.
abstract: We numerically study the coupling of magnetic plasmon polaritons (MPPs) with Bloch surface waves (BSWs) in a system composed of a one-dimensional gold nanowire pair array lying on a periodic dielectric multilayer. At an appropriate period of the dielectric multilayer, maximum coupling takes place between the MPP and the BSW. It results in two branches of hybridized MPPs with a Rabi-type splitting as large as 125 meV. The maximal magnetic field intensity achieved in the center of nanowire pairs is enhanced greatly and an enhancement factor >1.5 is observed compared with that achieved by a nanowire pair array lying directly on a substrate. This has potential applications in nonlinear optics and near-field enhanced spectroscopy.
authors: Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
authors: Hai
authors: H
authors: Liu
authors: Xiudong
authors: X
authors: Sun
authors: Yanbo
authors: Y
authors: Pei
authors: Fengfeng
authors: F
authors: Yao
authors: Yongyuan
authors: Y
authors: Jiang