调整嵌套线介质的等离子体频率
Tuning Plasma Frequency of Nested Wire Media
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中文总结 AI 辅助
研究具有\(C_6\)和\(C_4\)旋转对称性的嵌套线介质，通过呼吸变形控制其等离子体频率。基于局部场方法开发分析模型，数值模拟显示可调谐性超\(80\%\)和\(60\%\)，还提出密集线介质近似方法，适用于一般嵌套线结构。
中文摘要 AI 辅助
我们研究具有\(C_6\)和\(C_4\)旋转对称性的嵌套线介质，其等离子体频率可通过呼吸变形控制。数值模拟显示，对于所考虑的\(C_6\)和\(C_4\)呼吸几何结构，可调谐性分别超过\(80\%\)和\(60\%\)。我们基于细线近似下的局部场方法开发了一个分析模型，证实了所研究线结构的高可调谐性。还提出了一种密集线介质的近似方法。该框架适用于嵌套线结构的一般情况。
英文摘要
We study nested wire media possessing $C_6$ and $C_4$ rotational symmetries whose plasma frequencies can be controlled through breathing deformation. Numerical simulations reveal tunability exceeding $80\%$ and $60\%$ for the considered $C_6$ and $C_4$ breathing geometries, respectively. To describe these structures, we develop an analytical model based on the local field approach within the thin-wire approximation, which confirms the high tunability of the studied wire structures. We also propose an approximation for dense wire media. The developed framework is applicable to the general case of nested wire structures -- wire media with an arbitrary parallelogram lattice and multiple wires per unit cell.
