论文标题

由粒子组成的元整口中的被困模式控制

Trapped mode control in metasurfaces composed of particles with the form birefringence property

论文作者

Kupriianov, Anton S., Fesenko, Volodymyr I., Evlyukhin, Andrey B., Han, Wei, Tuz, Vladimir R.

论文摘要

开发高级光子设备的进展依赖于引入新材料,发现的物理原理以及构造组件时的最佳设计。基于极高质量因子模式的激发原理运行的光学系统(也称为连续体中的结合状态,BICS)引起了极大的兴趣,因为它们允许实施具有出色特征的激光和传感器设备。在本文中,我们讨论了如何利用新型材料(过渡金属二甲植物,TMD)的各向异性特性,尤其是二硫化钼(MOS2),以实现对介电上部的捕获模式的激发。散装MOS2是一种薄膜结构,其中光波的行为与单轴各向异性材料中具有双重双向特性的方式相同。我们的元表面是由MOS2材料制成的一系列磁盘形纳米颗粒(谐振器),假设MOS2的各向异性轴可以将MOS2的各向异性轴倾斜到磁盘的旋转轴。我们对此类各向异性谐振器的本本特波和散射特性进行详细分析,以及跨表面的光谱特征揭示了所使用MOS2材料的各向异性轴方向的陷阱模式的激发条件的依赖性。

Progress in developing advanced photonic devices relies on introducing new materials, discovered physical principles, and optimal designs when constructing their components. Optical systems operating on the principles of excitation of extremely high-quality factor trapped modes (also known as the bound states in the continuum, BICs) are of great interest since they allow the implementation of laser and sensor devices with outstanding characteristics. In this paper, we discuss how one can utilize the anisotropic properties of novel materials (transition metal dichalcogenides, TMDs), particularly, the bulk molybdenum disulfide (MoS2), to realize the excitation of trapped modes in dielectric metasurfaces. The bulk MoS2 is a thin-film structure in which the light wave behaves the same way as that in the uniaxial anisotropic material with the form birefringence property. Our metasurface is composed of an array of disk-shaped nanoparticles (resonators) made of the MoS2 material under the assumption that the anisotropy axis of MoS2 can be tilted to the rotation axis of the disks. We perform a detailed analysis of eigenwaves and scattering properties of such anisotropic resonators as well as the spectral features of the metasurface revealing dependence of the excitation conditions of the trapped mode on the anisotropy axis orientation of the MoS2 material used.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源