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arXiv 1306.3944physics.opticsphysics.atom-ph
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对向传播脉冲与连续波场Hanle共振的连续反转

Continuous reversal of Hanle resonances of counter-propagating pulse and continuous-wave field

Jelena Dimitrijević, Dusan Arsenović, Branislav M Jelenković

摘要:

在这项工作中,我们研究了两个反向传播的激光,连续波(CW)激光和另一个激光的脉冲,当这两个激光器被调谐到$^{87}$ Rb的$F_{g}=2 \rightarrow F_{e}=1$过渡的传播动力学,因此可以开发汉勒电磁诱导透明(EIT)在Rb蒸汽。我们计算了这两种激光器的传输作为施加磁场的函数,并研究了脉冲的传播如何影响CW激光器的传输。反之亦然,我们已经发现的条件下,高斯脉冲可以通过不变,或被显著吸收的真空Rb细胞。因此,这种配置适合于方便地控制脉冲传播,并且该系统对于激光脉冲的光学切换是有意义的。根据相干Hanle共振的相应形状,这相当于将Hanle EIT的相干共振转变为电磁感应吸收(EIA)峰。当原子相干性的强驱动使得两束激光通过原子相干性相互作用并且可以同时反转两者的Hanle共振符号时,存在CW激光和激光脉冲的强度范围。

英文摘要:

In this work we study propagation dynamics of the two counter-propagating lasers, the continuous-wave (CW) laser and the pulse of another laser, when both lasers are tuned to the $F_{g}=2 \rightarrow F_{e}=1$ transition in $^{87}$Rb, and therefore can develop Hanle electromagnetically induced transparency (EIT) in Rb vapor. We calculate transmission of both lasers as a function of applied magnetic field, and investigate how the propagation of the pulse affects the transmission of the CW laser. And vice versa, we have found conditions when the Gaussian pulse can either pass unchanged, or be significantly absorbed in the vacuum Rb cell. This configuration is therefore suitable for the convenient control of the pulse propagation and the system is of interest for optically switching of the laser pulses. In terms of the corresponding shapes of the coherent Hanle resonances, this is equivalent to turning the coherent resonance from Hanle EIT into electromagnetically induced absorption (EIA) peak. There is the range of intensities of both CW laser and the laser pulse when strong drives of atomic coherences allow two lasers to interact with each other through atomic coherence and can simultaneously reverse signs of Hanle resonances of both.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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