Chinese Optics Letters, 2010, 8 (3): 335, Published Online: Mar. 11, 2010
Splitting and focusing of light with metal nano-slits coated with nonlinear Kerr medium Download: 660次
光束分裂 聚焦 克尔介质 表面等离子体 260.3910 Metal optics 240.6680 Surface plasmons 190.3270 Kerr effect 160.4236 Nanomaterials
Abstract
We demonstrate that a finite number of nano-slits can realize beam splitting and focusing of light by coating the metallic film surfaces with nonlinear Kerr medium. The numerical simulation shows that the beam splitting and focusing can be controlled by the incident light intensity. The splitting angle is quasi-periodically modulated by the incident light intensity, and the focusing length of forward propagating transmitted light decreases as the incident light intensity increases. These effects are explained by the surface plasmon polariton Bloch modes and self-focusing theory.
Lichun Wang, Hongju Guo, Li Deng, Yang Xiang, Shangqing Gong. Splitting and focusing of light with metal nano-slits coated with nonlinear Kerr medium[J]. Chinese Optics Letters, 2010, 8(3): 335.