Wu Zhi, Nelson Robert L, Haus Joseph W, Zhan Qiwen
Electro-Optics Graduate Program, University of Dayton, Dayton, Ohio 45469, USA.
Opt Lett. 2008 Mar 15;33(6):551-3. doi: 10.1364/ol.33.000551.
A plasmonic electro-optic modulator design using an evanescently coupled resonant metal grating is numerically studied in this Letter. Owing to excitation and propagation of long-range surface plasmons between the metal grating nanowires, a deep and narrow reflection dip can be obtained. Improved modulation performance is achieved through decreased damping from large dielectric gaps between the grating nanowires. An optimized electro-optic modulator design with lower insertion loss and low operating voltage is presented.
本文通过数值研究了一种采用倏逝耦合谐振金属光栅的表面等离子体电光调制器设计。由于金属光栅纳米线之间长程表面等离子体的激发和传播，可以获得一个深且窄的反射凹陷。通过减小光栅纳米线之间大介电间隙的阻尼，实现了调制性能的提升。本文提出了一种具有更低插入损耗和低工作电压的优化电光调制器设计。
