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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Observation and theoretical simulation of N-resonances in Cs D-2 lines
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Observation and theoretical simulation of N-resonances in Cs D-2 lines

机译：CS D-2线中N共振的观察与理论模拟

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摘要

N-type resonances in Cs D-2 lines are investigated in optical cell for different detuning of the fixed coupling transition frequency. Using two independent DFB lasers makes it possible to observe high contrast and subnatural-width N-resonances without magnetic field shielding of an optical buffer gas cell with sub-centimeter dimensions. According to the detuning of the coupling laser frequency, an N-resonance with frequency higher or lower than this of the coupling transition frequency is registered. In the first case the N-resonance is in absorption, but in the second case, an inverse N-resonance (enhanced transparency) is measured. A theoretical simulation of the line shape, which is based on solution of optical Bloch equations and considers the interaction of both coupling and probe radiations with the atomic system is done. The simulation leads to N-resonance peaks in agreement with the observed peaks for different positions of the coupling frequency. The presented approach is of importance for further study and optimization of the three-photon and magneto-optical resonances, as well as for miniaturization of optical sensors based on spatially restricted hot alkali vapor.
机译：在光学电池中研究了CS D-2线中的N型共振，以不同于固定耦合过渡频率的影响。使用两个独立的DFB激光器使得可以观察具有具有亚厘米尺寸的光学缓冲气体电池的磁场屏蔽的高对比度和截面宽度N-谐振。根据耦合激光频率的损伤，注册了频率高于或低于耦合转换频率的n谐振。在第一种情况下，N-谐振处于吸收，但在第二种情况下，测量逆n-谐振（增强透明度）。完成了基于光学波纹方程的溶液的线形状的理论模拟，并考虑与原子系统耦合和探针辐射的相互作用。模拟导致N-谐振峰与观察到的耦合频率的不同位置的峰值一致。所提出的方法对于进一步研究和优化三光子和磁光共振的方法，以及基于空间限制的热碱蒸气的光学传感器的小型化。

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