We study the generation and control of the microwave (MW)-induced reverse saturable absorption (RSA) and optical limiting (OL) in a three-level pump-probe V-type quantum system. It is shown that the saturable absorption switches to the RSA by applying the MW field to the transition between two upper levels. Moreover, it is demonstrated that the RSA and the induced OL threshold are controlled by either the intensity or detuning of the MW field. In addition, the effect of the coupling field on the induced optical limiting is studied, and it is obtained that the cross-Kerr nonlinearity has a major role in establishing efficient optical power limiting. In addition, we demonstrate that an increase in the atomic density and length of the medium makes the optical limiter more powerful. Finally, the theoretical Z-scan technique is presented to confirm the obtained results of the microwave-induced OL. The proposed scheme can be used to prepare a controllable optical limiter with various thresholds, which can protect the optical devices with different sensitivities.

中文翻译：

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微波引起的光限幅

我们研究了三级泵浦探针 V 型量子系统中微波 (MW) 诱导的反向饱和吸收 (RSA) 和光学限制 (OL) 的产生和控制。结果表明，通过将 MW 场应用于两个较高能级之间的跃迁，可饱和吸收转换为 RSA。此外，还证明了 RSA 和诱导的 OL 阈值受 MW 场的强度或失谐控制。此外，研究了耦合场对感应光限幅的影响，得出交叉克尔非线性在建立有效的光功率限幅方面起主要作用。此外，我们证明了介质的原子密度和长度的增加使光学限制器更强大。最后，提出了理论 Z 扫描技术来确认微波诱导 OL 的获得结果。该方案可用于制备具有各种阈值的可控光限幅器，可以保护不同灵敏度的光器件。