Binfeng Yun, Guohua Hu, Yiping Cui
Advanced Photonics Center, Southeast University, Nanjing, China, 210096.
Opt Express. 2009 Mar 2;17(5):3610-8. doi: 10.1364/oe.17.003610.
A symmetric dielectric loaded surface plasmon polariton waveguide is proposed and numerically analyzed. The characteristics of the symmetric and asymmetric bound modes, including the effective mode indices, propagation lengths, mode sizes and mode shapes at telecom wavelength 1.55 microm are investigated in detail. The simulation results show that the sub-wavelength confinement (about1.45 microm ) and a long propagation (about 820 microm ) can be realized. Although the mode sizes are a bit larger than that of the dielectric loaded surface plasmon polariton waveguide, an order longer propagation length can be achieved. The proposed symmetric dielectric loaded surface plasmon polariton waveguide provides a potential for low loss and high density photonic integration.
提出并数值分析了一种对称介质加载表面等离子体激元极化子波导。详细研究了对称和非对称束缚模的特性，包括在电信波长1.55微米处的有效模折射率、传播长度、模尺寸和模形状。仿真结果表明，可以实现亚波长限制（约1.45微米）和长传播（约820微米）。虽然模尺寸比介质加载表面等离子体激元极化子波导的模尺寸稍大，但可以实现长一个数量级的传播长度。所提出的对称介质加载表面等离子体激元极化子波导为低损耗和高密度光子集成提供了潜力。
