Sellier Alexandre, Teperik Tatiana V, de Lustrac André
Opt Express. 2013 Nov 4;21 Suppl 6:A997-1006. doi: 10.1364/OE.21.00A997.
The resonant absorption in a planar metamaterial is studied theoretically. We present a simple physical model describing this phenomenon in terms of equivalent resonant circuit. We discuss the role of radiative and dissipative damping of resonant mode supported by a metamaterial in the formation of absorption spectra. We show that the results of rigorous calculations of Maxwell equations can be fully retrieved with simple model describing the system in terms of equivalent resonant circuit. This simple model allows us to explain the total absorption effect observed in the system on a common physical ground by referring it to the impedance matching condition at the resonance.
从理论上研究了平面超材料中的共振吸收。我们提出了一个简单的物理模型，用等效共振电路来描述这一现象。我们讨论了超材料所支持的共振模式的辐射和耗散阻尼在吸收光谱形成中的作用。我们表明，用等效共振电路描述系统的简单模型可以完全重现麦克斯韦方程组的严格计算结果。这个简单模型使我们能够在一个共同的物理基础上，通过将其归结为共振时的阻抗匹配条件，来解释在该系统中观察到的全吸收效应。
