We have designed and experimentally studied several systems of standard coaxial cables with different impedances which mimic the operation of so-called photonic structures like coupled photonic crystal microcavities. Using elementary cells of half-meter long coaxial cables, we got resonances around 100 MHz, a range of frequencies that can be easily studied with standard teaching laboratory apparatus. Resonant mode frequency splitting has been obtained in the case of double and triple coupled cavities. Good agreement between experimental results and the transfer matrix model has been observed. The aim here is to demonstrate that a standard coaxial cable system is a very cheap and easy to implement structure to explain to undergraduate students complex phenomena that usually occur in the optical domain.

中文翻译：

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研究耦合光子晶体微腔的简单模型系统

我们已经设计并实验研究了几种具有不同阻抗的标准同轴电缆系统，这些系统模仿了所谓的光子结构（如耦合光子晶体微腔）的运行。使用半米长同轴电缆的基本单元，我们得到了大约100 MHz的谐振，该频率范围可以通过标准教学实验室设备轻松地进行研究。在双腔和三腔耦合的情况下，已经获得了谐振模式的频率分裂。已经观察到实验结果与转移矩阵模型之间的良好一致性。这里的目的是证明标准同轴电缆系统是一种非常便宜且易于实现的结构，可以向大学生解释通常在光学领域发生的复杂现象。