量子电子学报, 2014, 31 (4): 428, 网络出版: 2014-07-30
基于金属狭缝结构的表面等离激元全光调控
All-optical control of surface plasmon polaritons based on metal slit structures
纤维与波导光学 表面等离激元 单向激发器 分束器 纳米聚焦 全光开关 fiber and waveguide optics surface plasmon polaritons unidirectional generator splitter nano-focusing all-optical switch
摘要
表面等离激元是束缚在金属-介质交界面上的一种电磁波模式,可突破衍射极限, 被认为是下一代集成光子回路最有希望的信息载体。就几种表面等 离激元金属狭缝结构的原理和应用做了简单概述。利用法布里-珀罗谐振腔、法诺共振、多模干涉等光学效应, 这些金属狭缝结构可对表面等离激元的传输行为进行有效地调控。在理论和实验上,利用金属狭缝结构实现了 亚波长表面等离激元单向激发器、亚微米宽带单向激发器、亚微米分束器、超紧凑纳米聚焦器件和亚微米全光开 关等纳米光子器件。这些纳米光子器件在纳米集成光学中具有重要应用。
Abstract
Surface plasmon polaritons (SPPs), the electromagnetic fields propagating along the metal-dielectric interface, are regard as the promising candidate of the next photonic integrated circuits. Several metal slit structures based on the SPPs are summarized. By using the Fabry-Perot resonator effect, Fano resonance, and multimode interference, the SPP propagation could be controlled and modulated by these metal slit structures. As a result, a subwavelength unidirectional SPP generator, a submicron broad unidirectional SPP generator, submicron SPP splitters, nano-focusing devices, and submicron all-optical switches were realized in the metal slit structures. These nano-plasmonic devices have important applications in highly integrated photonics.
陈建军, 李智, 龚旗煌. 基于金属狭缝结构的表面等离激元全光调控[J]. 量子电子学报, 2014, 31(4): 428. CHEN Jian-jun, LI Zhi, GONG Qi-huang. All-optical control of surface plasmon polaritons based on metal slit structures[J]. Chinese Journal of Quantum Electronics, 2014, 31(4): 428.