Ma Jin-Lou, Tan Lei, Li Qing, Gu Huai-Qiang, Liu Wu-Ming
Institute of Theoretical Physics, Lanzhou University, Lanzhou, 730000, China.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China.
Sci Rep. 2018 Sep 25;8(1):14367. doi: 10.1038/s41598-018-32506-y.
We theoretically investigate the optomechanically induced transparency (OMIT) phenomenon in a N-cavity optomechanical system doped with a pair of Rydberg atoms with the presence of a strong control field and a weak probe field applied to the Nth cavity. It is found that 2N - 1 (N < 10) numbers of OMIT windows can be observed in the output field when N cavities couple with N mechanical oscillators and the mechanical oscillators coupled with different even- or odd-labelled cavities can lead to diverse effects on OMIT. Furthermore, the ATS effect appears with the increase of the effective optomechanical coupling rate. On the other hand, two additional transparent windows (extra resonances) occur, when two Rydberg atoms are coupled with the cavity field. With DDI strength increasing, the extra resonances move to the far off-resonant regime but the left one moves slowly than the right one due to the positive detuning effect of DDI. During this process, Fano resonance also emerges in the absorption profile of output field.
我们从理论上研究了在一个包含一对里德堡原子的 N 腔光机械系统中的光机械诱导透明（OMIT）现象，该系统中向第 N 个腔施加了一个强控制场和一个弱探测场。研究发现，当 N 个腔与 N 个机械振子耦合时，在输出场中可以观察到 2N - 1（N < 10）个 OMIT 窗口，并且与不同偶数或奇数标记腔耦合的机械振子会对 OMIT 产生不同的影响。此外，随着有效光机械耦合率的增加会出现反斯托克斯（ATS）效应。另一方面，当两个里德堡原子与腔场耦合时，会出现另外两个透明窗口（额外共振）。随着双光子失谐相互作用（DDI）强度增加，额外共振会移向远失谐区域，但由于 DDI 的正失谐效应，左边的额外共振移动得比右边的慢。在此过程中，输出场的吸收谱中也会出现法诺共振。
