纳米结构材料中电磁俘获模在超常透射中的作用
The role of electromagnetic trapped modes in extraordinary transmission in nanostructured materials
摘要：
我们断言，纳米结构材料中的异常光透射（反射）的物理基础可以从基于量子力学中发展的正式散射理论的相当普遍的原理来理解。无源（色散和吸收）线性介质中的麦克斯韦方程组被写成薛定谔方程的形式，其中应用了量子力学共振散射理论（李普曼-施温格形式）。它表明，长寿命的准稳态本征态的有效哈密顿麦克斯韦理论的存在自然解释了在各种纳米结构材料中观察到的非凡的传输特性。这样的状态对应于被捕获在散射结构中的准稳态电磁模式。我们的一般方法也说明了一个例子的TE-偏振光通过金属介质光栅结构的零级传输。这里，依赖于时间的麦克斯韦方程组的直接网格解证明了共振（或捕获模式）对于非常光传输的重要性。
英文摘要：
We assert that the physics underlying the extraordinary light transmission (reflection) in nanostructured materials can be understood from rather general principles based on the formal scattering theory developed in quantum mechanics. The Maxwell equations in passive (dispersive and absorptive) linear media are written in the form of the Schrödinger equation to which the quantum mechanical resonant scattering theory (the Lippmann-Schwinger formalism) is applied. It is demonstrated that the existence of long-lived quasistationary eigenstates of the effective Hamiltonian for the Maxwell theory naturally explains the extraordinary transmission properties observed in various nanostructured materials. Such states correspond to quasistationary electromagnetic modes trapped in the scattering structure. Our general approach is also illustrated with an example of the zero-order transmission of the TE-polarized light through a metal-dielectric grating structure. Here a direct on-the-grid solution of the time-dependent Maxwell equations demonstrates the significance of resonances (or trapped modes) for extraordinary light transmissio
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