AI 中文总结
本研究通过调控ZnO纳米线与单层WSe₂混合结构的扭转角，实现了二次谐波产生的干涉调控与材料选择性，为纳米级混合器件的非线性光与物质相互作用控制提供了先进框架。
AI 中文摘要
集成不同维度材料（0维、1维、2维）的纳米级器件在光子学和光电子学的高级应用中具有巨大潜力。这类器件开发的一个基本要求是对光与物质相互作用进行工程化设计和控制，超越线性和非线性光发射的简单增强或淬灭。本研究中，我们通过实现ZnO纳米线与单层WSe₂组成的混合系统中非线性光学响应的扭转角可调性，展示了对纳米级光与物质相互作用的控制。通过改变ZnO极性轴与WSe₂晶轴之间的相对取向，我们在二次谐波产生中实现了相长和相消干涉，并且在二次谐波偏振相关测量中获得了完全的材料选择性。这些结果源于混合组分的不同维度和对称性，凸显了我们方法的普适性。因此，本研究为纳米级混合器件中非线性光与物质相互作用的设计和控制提供了先进框架，为其未来在光子学和光电子技术中的应用铺平了道路。
英文摘要
Nanoscale devices that integrate materials of different dimensionalities (0D, 1D, and 2D) hold great potential for advanced applications in photonics and optoelectronics. A fundamental requirement for the development of such devices is the engineering and control of light-matter interactions beyond the simple enhancement or quenching of linear and nonlinear optical emission. In this study, we demonstrate control over nanoscale light-matter interactions by achieving twist-angle tunability of the nonlinear optical response in a hybrid system composed of a ZnO nanowire and a monolayer of WSe$_2$. By varying the relative orientation between the ZnO polar axis and the WSe$_2$ crystal axes, we realize both constructive and destructive interference in second-harmonic generation, as well as full material selectivity in second harmonic polarization-dependent measurements. These outcomes arise from the distinct dimensionalities and symmetries of the hybrid constituents, underscoring the generality of our approach. Thus, our work presents an advanced framework for the design and control of nonlinear light-matter interactions in nanoscale hybrid devices, thereby paving the way for their future use in photonic and optoelectronic technologies.
CommentsUnder review
