Saturation-induced coherence loss in coherent backscattering of light.
Saturation-induced coherence loss in coherent backscattering of light.
复制标题
光相干反向散射中饱和引起的相干损失。
DOI：
10.1103/physreve.70.036602
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
C. Miniatura
中科院分区：
文献类型：
--
作者：
Thierry Chanelière;D. Wilkowski;Y. Bidel;Robin Kaiser;C. Miniatura
我们利用冷锶原子对光的相干后向散射来研究多重散射下的破相机制。随着探针光强的增加，原子的光学跃迁开始饱和。然后出现非线性和非弹性散射。后者引起了特征破相时间，降低了波的相干性。在我们的实验中，这导致相干后向散射锥的增强因子大大降低。给出了不同探针失谐情况下的结果。
We use coherent backscattering of light by cold strontium atoms to study phase-breaking mechanisms in the multiple-scattering regime. As the probe light intensity is increased, the atomic optical transition starts to be saturated. Nonlinearities and inelastic scattering then occur. The latter induces a characteristic phase-breaking time that reduces the wave coherence. In our experiment, this leads to a strong reduction of the enhancement factor of the coherent backscattering cone. The results at different probe detuning are also presented.