分布式谐振反馈系统中的电磁诱导透明激光
Electromagnetically induced transparency lasing in distributed resonant feedback system
AI总结：
研究在周期性波导 - 谐振器结构中利用基于损耗的机制实现单个电磁诱导透明模拟，通过谐振器固有损耗产生孤立透明模式，实现稳健单频激光，扩展了经典EIT模拟从被动到主动激光操作。
AI中文摘要：
我们展示了一种基于损耗的机制，该机制可在周期性波导 - 谐振器结构中实现单个电磁诱导透明（EIT）模拟。与先前基于通带的EIT模拟不同，此机制利用谐振器固有损耗在原始带隙内产生孤立的透明模式。所得EIT状态不受有限尺寸模式离散化影响，通过分布式谐振反馈实现稳健单频激光，且阈值模态增益低于等长法布里 - 珀罗激光器。研究将经典EIT模拟从被动光谱现象扩展到主动激光操作。
英文摘要：
We demonstrate a loss-enabled mechanism that can realize single electromagnetically induced transparency (EIT) analogue in periodic waveguide-resonator structures. Unlike previously reported passband-based EIT analogues, which arise from compressed passbands in the intrinsic-loss-free limit, the proposed mechanism exploits resonator intrinsic loss to generate an isolated transparency mode within the original bandgap. The resulting EIT state remains immune to finite-size mode discretization, enabling robust single-frequency lasing through distributed resonant feedback while requiring a threshold modal gain lower than that of an equally long Fabry-Perot laser. Our findings extend classical EIT analogues from passive spectral phenomena to active laser operation.
