论文标题
在三个波导的耗散系统中分裂的超人物束
Ultrabroadband beam splitting in a dissipative system of three waveguides
论文作者
论文摘要
我们表明，三个平行波导的系统，其中一个是耗散的，这会导致与总体50％功率损失相关的超人物电源分裂。目前的方法让人联想到量子力学中的非热系统，并且不需要外部和中央波导之间的完美有效指数匹配。当前的概念不需要波导参数的任何缓慢的绝热演化，因此可以在非常短的设备长度上实现，尤其是在中央波导是等离子体类型的情况下。
We show that a system of three parallel waveguides, among which the central one is dissipative, leads to an ultrabroadband power splitting associated with an overall 50% power loss. The present approach is reminiscent of non-Hermitian systems in quantum mechanics and does not require a perfect effective index matching between the external and the central waveguides. The present concept does not need any slow adiabatic evolution of the waveguide parameters and may therefore be realized over very short device lengths, especially in the case where the central waveguide is of the plasmonic type.
