论文标题
触摸电线的总和频率产生：转换光学方法
Sum frequency generation from touching wires: A transformation optics approach
论文作者
论文摘要
我们采用转化光学器件来研究来自接触等离子线的几何形状的分析非线性波混合。我们获得近场的分析解，并用远场特性的解决方案进行补充。我们发现，有些令人惊讶的是，对于第二次谐波一代的退化案例，获得了最佳效率（在这两个方案中）。我们利用获得的分析解决方案将这种行为追踪到几何奇异性附近输入场的空间重叠。
We employ transformation optics to study analytically nonlinear wave mixing from a singular geometry of touching plasmonic wires. We obtain the analytic solution of the near-field and complement it with a solution of the far-field properties. We find, somewhat surprisingly, that optimal efficiency (in both regimes) is obtained for the degenerate case of the Second-harmonic generation. We exploit the analytic solution obtained to trace this behaviour to the spatial overlap of the input fields near the geometric singularity.
