Observation of modulation instability in a nonlinear magnetoinductive waveguide
Observation of modulation instability in a nonlinear magnetoinductive waveguide
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DOI：
10.1103/physrevb.87.195123
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发表时间：
2013-05
影响因子：
3.7
通讯作者：
Y. Tamayama;T. Nakanishi;M. Kitano
中科院分区：
文献类型：
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作者：
Y. Tamayama;T. Nakanishi;M. Kitano
我们报告了非线性磁感应波导中调制不稳定性的数值和实验研究。通过数值模拟，我们发现具有三阶非线性的磁感应波导的电路模型存在调制不稳定性。我们使用变容二极管负载开环谐振器制造了微波非线性磁感应波导，并观察了波导中调制不稳定性的产生。实验中产生调制不稳定性的条件与数值分析中的条件大致一致。
We report numerical and experimental investigations into modulation instability in a nonlinear magnetoinductive waveguide. By numerical simulation we find that modulation instability occurs in an electrical circuit model of a magnetoinductive waveguide with third-order nonlinearity. We fabricate the nonlinear magnetoinductive waveguide for microwaves using varactor-loaded split-ring resonators and observe the generation of modulation instability in the waveguide. The condition for generating modulation instability in the experiment roughly agrees with that in the numerical analysis.