论文标题
杂交波导中的能量耗散和不对称的激发，用于路由和着色
Energy Dissipation and Asymmetric Excitation in Hybrid Waveguides for Routing and Coloring
论文作者
论文摘要
光信号从外部光源传递到纳米级波导对于纳米电路电路的发展非常重要。但是，将外部光能与纳米光子组件的有效耦合非常困难，并且仍然是一个挑战。在此，我们使用外部二氧化硅纳米纤维来点亮有机无机杂交纳米波导，即由掺杂的聚合物丝组成的系统，该系统掺杂了MOS $ _ {2} $量子点。在交叉几何形状中，纳米纤维激发的纳米波导沿两个相反的方向不对称地激发信号，带有不同的能量耗散，导致MOS $ _ {2} $量子点发出的光的不同颜色，并从波导端子中收集。有趣的是，杂交波导中的彩虹状光是通过三合一的红色，绿色和蓝色组件的混合来实现的。这种杂型二维的波动二维系统代表了在集成的纳米光子设备中朝着全光路线和全彩色显示的重大进步。
The delivery of optical signals from an external light source to a nanoscale waveguide is highly important for the development of nanophotonic circuits. However, the efficient coupling of external light energy into nanophotonic components is difficult and still remains a challenge. Herein, we use an external silica nanofiber to light up an organic-inorganic hybrid nano-waveguide, namely a system composed of a polymer filament doped with MoS$_{2}$ quantum dots. Nanofiber-excited nano-waveguides in a crossed geometry are found to asymmetrically couple excitation signals along two opposite directions, with different energy dissipation resulting in different colors of the light emitted by MoS$_{2}$ quantum dots and collected from the waveguide terminals. Interestingly, rainbow-like light in the hybrid waveguide is achieved by three-in-one mixing of red, green, and blue components. This hetero-dimensional system of dots-in-waveguide represents a significant advance towards all-optical routing and full-color display in integrated nanophotonic devices.
