论文信息 - Demonstration of Group Delay Modulation Based on EIT Using LC Circuits

Demonstration of Group Delay Modulation Based on EIT Using LC Circuits

Demonstration of group delay modulation based on electromagnetically induced transparency (EIT) is presented by using LC circuits. The EIT effect is realized by trapping one ‘dark’ mode with high Q-factor into one ‘bright’ mode with low Q-factor. The ‘bright’ mode can be realized by using an LC circuit, which consists of a capacitor and an inductor, and the ‘dark’ mode can be realized by coupling with another LC circuit. The circuit model is simulated, and three pass bands are obtained. Based on this circuit model, the group delay modulation is realized by changing the value of the parameters. The proposed circuit model has the advantage of simple structure and practical for use, which makes it easy to design the novel group-delay sensor.

Xianqi Lin | Zhe Chen

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