Muhammad Naseer, Su Zhaoxian, Jiang Qiang, Wang Yongtian, Huang Lingling
School of Optics and Photonics, Beijing Engineering Research Center of Mixed Reality and Advanced Display, Beijing Institute of Technology, Beijing 100081, China, Beijing, 100081, China.
Beijing Engineering Research Center of Mixed Reality and Advanced Display, Beijing Institute of Technology, Beijing, 100081, China.
Light Sci Appl. 2024 Aug 16;13(1):192. doi: 10.1038/s41377-024-01548-5.
Non-radiative optical modes attracted enormous attention in optics due to strong light confinement and giant Q-factor at its spectral position. The destructive interference of multipoles leads to zero net-radiation and strong field trapping. Such radiationless states disappear in the far-field, localize enhanced near-field and can be excited in nano-structures. On the other hand, the optical modes turn out to be completely confined due to no losses at discrete point in the radiation continuum, such states result in infinite Q-factor and lifetime. The radiationless states provide a suitable platform for enhanced light matter interaction, lasing, and boost nonlinear processes at the state regime. These modes are widely investigated in different material configurations for various applications in both linear and nonlinear metasurfaces which are briefly discussed in this review.
非辐射光学模式因其在光谱位置处的强光限制和巨大品质因数而在光学领域引起了极大关注。多极子的相消干涉导致净辐射为零和强场捕获。这种无辐射状态在远场中消失，在近场中局部增强，并且可以在纳米结构中被激发。另一方面，由于在辐射连续体中的离散点处没有损耗，光学模式被证明是完全受限的，这种状态导致无限的品质因数和寿命。无辐射状态为增强光与物质相互作用、激光发射以及在该状态区域增强非线性过程提供了一个合适的平台。这些模式在不同的材料结构中被广泛研究，用于线性和非线性超表面的各种应用，本综述将对此进行简要讨论。
