论文标题

高饱和度方案中的谐振前向散发场:弹性和无弹性贡献

Resonant forward-scattered field in the high-saturation regime: Elastic and inelastic contributions

论文作者

Kwong, C. C., Wellens, T., Pandey, K., Wilkowski, D.

论文摘要

我们通过高度饱和的原子介质通过探针束突然灭绝后立即发出的闪光测量光的谐振散射。实验是在稀释状态下进行的,在稀释状态下,使用独立的散射近似很好地捕获了现象。将我们的测量值与基于Maxwell-Bloch方程的模型进行比较,我们的实验结果与仅弹性成分的贡献一致,而相干传输功率的衰减与弹性和无弹性散射有关。在较大的饱和度状态和原子共振附近,我们得出了将弹性散射能力与前向散射功率相关的渐近表达。

We measure the resonant forward scattering of light by a highly saturated atomic medium through the flashes emitted immediately after an abrupt extinction of the probe beam. The experiment is done in a dilute regime where the phenomena are well captured using the independent scattering approximation. Comparing our measurements to a model based on Maxwell-Bloch equations, our experimental results are consistent with contributions from only the elastic component, whereas the attenuation of the coherent transmission power is linked to the elastic and inelastic scatterings. In the large saturation regime and at the vicinity of the atomic resonance, we derive an asymptotic expression relating the elastic scattering power to the forward-scattered power.

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