Ultra-deep-subwavelength Light Transport in Hybrid Nanowire-loaded Silicon Nano-rib Waveguides

摘要

We report a high-performance silicon-based hybrid plasmonic waveguide that consists of a silicon nano-rib loaded with a metallic nanowire. An ultra-deep-subwavelength mode area (λ~2/4.5×10~5 ～ λ~2/7×10~3), in conjunction with a reasonable propagation distance (2.2 ～ 60.2 μm), is achievable at a telecommunication wavelength of 1.55 μm, which indicates that this device outperforms its conventional hybrid and nanowire waveguiding counterparts.