论文标题
三级原子系统中光学双重性的高度敏感性可控性
Highly sensitive controllability of optical bistability in three-level atomic systems
论文作者
论文摘要
从理论上讲，我们在$ n $非相互作用的三级原子的合奏中研究了被困在光学腔内的$ n $ n $相互作用的现象。原子在$λ$级别的配置中，其中一个原子过渡与空腔模式结合，而另一个原子过渡则与经典字段相结合。此外，我们考虑驱动腔模式的抽水场。使用此系统，我们能够观察到新型的滞后，同时扫描泵场的频率或控制场的Rabi频率（强度）。我们表明它们可以通过系统的外部参数高度控制，从而实现非常狭窄的宽度，因此对于构建新设备（例如在激光场的频率或强度下的小波动检测器）非常有用。
We theoretically investigate the optical bistability phenomenon in an ensemble of $N$ non-interacting three-level atoms trapped inside an optical cavity. The atoms are in a $Λ$-level configuration, where one atomic transition is coupled by a cavity mode, while the other one is coupled by a classical field. In addition, we consider a pumping field driving the cavity mode. With this system, we are able to observe new kinds of hysteresis, while scanning either the frequency of the pumping field or the Rabi frequency (intensity) of the control field. We show that they can be highly controllable via external parameters of the system, achieving very narrow widths, thus being very useful for building new devices, such as small fluctuation detectors in either frequency or intensity of laser fields.
