激光与光电子学进展, 2019, 56 (12): 121301, 网络出版: 2019-06-13
基于锯齿共振腔耦合金属波导结构的多通道等离子体逻辑门输出光源 
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Multi-Channel Plasmonic Logic-Gate Output Light Source Based on Sawtooth Resonant Cavity Coupled with Metal-Waveguide Structure
集成光学 逻辑输出光源 时域有限差分方法 传输效率 金属波导 integrated optics logic output light source finite-difference time-domain method transmission efficiency metal waveguide
摘要
提出了一种基于锯齿共振腔耦合金属波导结构。研究发现,该波导结构在加入锯齿共振腔后有更好的信号输出频率,可通过调整锯齿共振腔长度和宽度实现对逻辑门光源输出信号频率的控制;并通过增加结构中输出波导数量来增加逻辑信号的输出端口,可实现双通道及三通道逻辑信号的输出功能。该锯齿共振腔耦合金属波导结构构建的逻辑门输出光源具有较好的传输效率和较宽的工作带宽,通过调整锯齿共振腔的长宽参数,传输效率可达60%,平均工作范围为1000 nm。
Abstract
A sawtooth resonant-cavity-coupled metal-waveguide structure is proposed. It is found that adding a sawtooth resonator improves the signal output frequency of the waveguide structure. In addition, the output signal frequency of the logic-gate light source can be controlled by adjusting the length and width of the sawtooth resonator. Moreover, the increase of logic signal output ports by increasing the number of output waveguides can help to realize the two- and three-channel signal outputs. This logic gate output light source, constructed by coupling a sawtooth resonator with a metal waveguide structure, has a broad working bandwidth and a high transmission efficiency. With a suitable adjustment of the length and width of the sawtooth resonator one can get a transmission efficiency of 60% and an average working range of 1000 nm.
肖功利, 徐俊林, 杨宏艳, 韦清臣, 窦婉滢, 杨秀华, 张开富, 杨寓婷, 李海鸥, 李琦, 陈永和, 傅涛. 基于锯齿共振腔耦合金属波导结构的多通道等离子体逻辑门输出光源[J]. 激光与光电子学进展, 2019, 56(12): 121301. Gongli Xiao, Junlin Xu, Hongyan Yang, Qingchen Wei, Wanying Dou, Xiuhua Yang, Kaifu Zhang, Yuting Yang, Haiou Li, Qi Li, Yonghe Chen, Tao Fu. Multi-Channel Plasmonic Logic-Gate Output Light Source Based on Sawtooth Resonant Cavity Coupled with Metal-Waveguide Structure[J]. Laser & Optoelectronics Progress, 2019, 56(12): 121301.
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