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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Optical bistability and multistability in four-level systems
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Optical bistability and multistability in four-level systems

机译：四级系统中的光学双稳性和多重稳定性

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The optical behavior of a four-level system in a ring cavity driven by two coherent laser fields is studied. One laser field is treated as the incident field and the other the control field, respectively. It is found that there is optical transparency when the difference between the two frequency detunings of the incident and control fields from the corresponding atomic transition frequencies is zero. Optical bistability can be produced and controlled by increasing the magnitude of the frequency difference. The bistable hysteresis becomes larger when the frequency difference is increased. Further increase of the latter can lead to onset of multistability. [References: 15]
机译：研究了由两个相干激光场驱动的环形腔中四能级系统的光学行为。一个激光场分别被视为入射场，另一激光场被视为控制场。发现当入射场和控制场的两个频率失谐与相应的原子跃迁频率之间的差为零时，存在光学透明性。可以通过增加频率差的大小来产生和控制光学双稳态。当频率差增加时，双稳态磁滞变大。后者的进一步增加可能导致多重稳定性的开始。 [参考：15]

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