Based on solid-state plasma (SSP), an electromagnetically induced transparent (EIT) metamaterial is proposed. Simulations illustrate that the given metamaterial has the characteristics of adjustment, polarization insensitivity, and low dissipation. Because SSP can be coordinated in state I, the ideal transmittance frequency band can cover 8.0335–9.02531 GHz (a narrow band). If the regulatory status is switched to state II, that frequency region will alter to 9.7982–12.9275 GHz (a broad band). As SSP can be switched back and forth between states I and II under actual demand, the tailored EIT metamaterial can be achieved. The maximum group delays of state I and state II are 0.9437 ns and 0.5546 ns, respectively, and the maximum group refractive indices are 526.60 and 300.45, respectively, which conforms to its slow light characteristic. Regardless of how the polarization angle changes, the two transmission valleys of state I are at 7.9172 GHz and 10.4446 GHz, and the transmission peak is situated at 8.2091 GHz, and those values of state II are 9.3777 GHz, 13.9600 GHz, and 10.1920 GHz, respectively, which proves that the obtained EIT is polarization independent and also has a low dissipation factor. Such an EIT metamaterial has excellent properties in sensing, communication, slow light, and other fields.

中文翻译：

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基于固态等离子体的可调电磁感应透明超材料：从窄带到宽带

基于固态等离子体（SSP），提出了一种电磁感应透明（EIT）超材料。仿真表明，给定的超材料具有调节，极化不灵敏和低耗散的特性。因为SSP可以在状态I下进行协调，所以理想的透射频段可以覆盖8.0335–9.02531 GHz（窄带）。如果将法规状态切换为状态II，则该频率区域将更改为9.7982-12.9275 GHz（宽带）。由于可以根据实际需求在状态I和状态II之间来回切换SSP，因此可以实现量身定制的EIT超材料。状态I和状态II的最大群延迟分别为0.9437 ns和0.5546 ns，最大群折射率分别为526.60和300.45，符合其慢光特性。无论极化角如何变化，状态I的两个传输谷分别为7.9172 GHz和10.4446 GHz，传输峰位于8.2091 GHz，状态II的那些值为9.3777 GHz，13.9600 GHz和10.1920 GHz，分别证明了所获得的EIT是偏振无关的，并且具有低的损耗因子。这种EIT超材料在传感，通信，慢光和其他领域中具有出色的属性。