论文标题
设计多功能超材料
Designing Multi-functional Metamaterials
论文作者
论文摘要
设计在不同电磁场上执行不同操作的被动结构的能力是许多技术的关键，从梁弯曲到光学计算。尽管已经开发了许多技术来优化结构以通过反设计实现特定功能，但设计多功能材料仍然具有挑战性。我们根据离散偶极近似提出了一种半分析方法，以设计多功能的超材料。为了证明我们方法的通用性，我们设计了一种设备，该设备根据源极化和在微波波长下起作用的设备，以光波长和光束向不同的方向运行，并通过其发射率来对平面波进行分类。
The ability to design passive structures that perform different operations on different electromagnetic fields is key to many technologies, from beam-steering to optical computing. While many techniques have been developed to optimise structure to achieve specific functionality through inverse design, designing multi-function materials remains challenging. We present a semi-analytic method, based on the discrete dipole approximation, to design multi-functional metamaterials. To demonstrate the generality of our method, we design a device that operates at optical wavelengths and beams light into different directions depending on the source polarisation and a device that works at microwave wavelengths and sorts plane waves by their angle of incidence.
