论文标题
介电纳米荷尔阵列的光学kerr非线性在与Anapole状态接近
Optical Kerr nonlinearity of dielectric nanohole array metasurface in proximity to anapole state
论文作者
论文摘要
由于其出色的光学特性，元信息引起了研究人员的广泛关注。尤其是，元整日可能包括具有具有强场限制和实质性抑制散射的光学上异能共振的结构。结果，此类纳米结构显示增强的非线性光学特性。在本文中，显示了具有圆形纳米孔的高索引介电元额叶中的Anapole模式在高索引介电元面积中的能力。在Anapole状态附近，有效的光学Kerr非线性通过数量级增加。同时，元图的光传递可以达到高值到统一。
Metasurfaces have attracted a great deal of attention from researchers due to their prominent optical properties. In particular, metasurfaces may consist of structures possessing optical anapole resonances with strong field confinement and substantially suppressed scattering. As a result, such nanostructures display enhanced nonlinear optical properties. In this paper by means of three-dimensional finite-difference time-domain simulations, the ability of anapole modes in high-index dielectric metasurfaces with circular nanopores is shown. In the vicinity of the anapole state, the effective optical Kerr nonlinearity increases by orders of magnitude. Simultaneously, the optical transmission of the metasurface can reach high values up to unity.
