Coherent inelastic backscattering of laser light from three isotropic atoms
Coherent inelastic backscattering of laser light from three isotropic atoms
复制标题
来自三个各向同性原子的激光的相干非弹性反向散射
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
V. Shatokhin
中科院分区：
文献类型：
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作者：
A. Ketterer;A. Buchleitner;V. Shatokhin
研究了在保螺旋极化通道中，双重和三重散射对饱和各向同性原子激光相干后向散射的影响。利用最近提出的图解泵浦-探针方法，我们解析推导了单原子对经典多色驱动场的光谱响应，并将它们自一致地结合到双散射和三散射过程中，并数值推导出相应的弹性和非弹性光谱以及总背散射强度。我们发现，三重散射的贡献导致相相干性随着原子跃迁饱和度的增加而衰减得更快，与单独的双重散射相比，这与锶原子的实验结果更吻合。
We study the impact of double and triple scattering contributions on coherent backscattering of laser light from saturated isotropic atoms, in the helicity preserving polarization channel. Using the recently proposed diagrammatic pump-probe approach, we analytically derive single-atom spectral responses to a classical polychromatic driving field, combine them self-consistently to double and triple scattering processes, and numerically deduce the corresponding elastic and inelastic spectra, as well as the total backscattered intensities. We find that account of the triple scattering contribution leads to a faster decay of phase-coherence with increasing saturation of the atomic transition as compared to double scattering alone, and to a better agreement with the experiment on strontium atoms.