Electromagnetically induced transparency and tunable fano resonances in hybrid optomechanics
Electromagnetically induced transparency and tunable fano resonances in hybrid optomechanics
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DOI：
10.1088/0953-4075/48/6/065502
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发表时间：
2015-03-28
影响因子：
1.6
通讯作者：
Saif, Farhan
中科院分区：
文献类型：
--
作者：
Akram, Muhammad Javed;Ghafoor, Fazal;Saif, Farhan
我们解释了弱探测场的电磁感应透明(EIT)现象和混合光学力学中的可调谐Fano共振现象。研究系统由一个二能级原子与一个带有运动反射镜的光机谐振器的单模场耦合而成。我们发现，在光机械耦合或Jaynes-Cummings耦合存在时，只有一个EIT窗口存在，而当两个耦合同时存在时，则出现两个不同的双EIT窗口。此外，基于我们的解析和数值工作，我们证明了系统中存在可调谐的Fano共振。该系统的控制参数可以在目前的实验室实验中实现，这些参数可以从单EIT窗口切换到双EIT窗口，并且是调节Fano共振所必需的。
We explain the phenomena of electromagnetically induced transparency (EIT) of a weak probe field and tunable Fano resonances in hybrid optomechanics. The system of study consists of a two-level atom coupled to a single-mode field of an optomechanical resonator with a moving mirror. We show that a single EIT window exists in the presence of optomechanical coupling or Jaynes-Cummings coupling, whereas two distinct double EIT windows occur when both the couplings are simultaneously present. Furthermore, based on our analytical and numerical work, we prove the existence of tunable Fano resonances in the system. The controlling parameters of the system, which switch from a single EIT window to double EIT windows and are needed to tune the Fano resonances, can be realized in present-day laboratory experiments.