arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.02247physics.optics
收藏

原子产生的压缩光场的空间多模结构

Spatial Multi-Mode Structure of Atom-Generated Squeezed Light

Mi Zhang, R. Nicholas Lanning, Zhihao Xiao, Jonathan P. Dowling, Irina Novikova, Eugeniy E. Mikhailov

摘要:

研究了Rb原子系综与强近共振线偏振激光场的偏振自旋转(PSR)相互作用产生的压缩真空场中量子涨落的空间分布.我们发现,噪声抑制的影响很大的横向轮廓的空间掩模,放置在压缩场和本振子,以及它的位置沿聚焦光束附近的焦点。这些观测结果表明压缩真空场的空间多模结构。我们已经建立了一个理论模型,描述了产生高阶拉盖尔-高斯模作为PSR光原子相互作用的结果。该模型的预测结果与实验测量结果定性吻合较好。

英文摘要:

We investigated the spatial distribution of quantum fluctuations in a squeezed vacuum field, generated via polarization self-rotation (PSR) interaction of an ensemble of Rb atoms and a strong near-resonant linearly polarized laser field. We found that the noise suppression is greatly effected by the transverse profile of a spatial mask, placed in both the squeezed field and the local oscillator, as well as its position along the focused beam near the focal point. These observations indicate the spatial multi-mode structure of the squeezed vacuum field. We have developed a theoretical model that describes the generation of higher-order Laguerre-Gauss modes as a result of PSR light-atom interaction. The prediction of this model are in a good qualitative agreement with the experimental measurements.

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。

↑