Dai Daoxin, He Sailing
Centre for Optical and Electromagnetic research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Zijingang Campus, Hangzhou, 310058, China.
Opt Express. 2009 Sep 14;17(19):16646-53. doi: 10.1364/OE.17.016646.
A hybrid plasmonic waveguide with a metal cap on a silicon-on-insulator rib (or slab) is presented. There is a low-index material nano-layer between the Si layer and the metal layer. The field enhancement in the nano-layer provides a nano-scale confinement of the optical field (e.g., 50 nm x 5 nm) when operates at the optical wavelength lambda = 1550 nm. The theoretical investigation also shows that the present hybrid plasmonic waveguide has a low loss and consequently a relatively long propagation distance (on the order of several tens of lambda).
提出了一种在绝缘体上硅肋（或平板）上带有金属帽的混合等离子体波导。在硅层和金属层之间存在一个低折射率材料纳米层。当在光波长λ = 1550 nm下工作时，纳米层中的场增强提供了光场的纳米级限制（例如，50 nm×5 nm）。理论研究还表明，这种混合等离子体波导具有低损耗，因此具有相对较长的传播距离（几十倍λ的量级）。
