Superradiant light scattering from thermal atomic vapors.
Superradiant light scattering from thermal atomic vapors.
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DOI：
10.1103/physrevlett.94.083602
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发表时间：
2005-03
影响因子：
8.6
通讯作者：
Yutaka Yoshikawa;Y. Torii;T. Kuga
中科院分区：
文献类型：
--
作者：
Yutaka Yoshikawa;Y. Torii;T. Kuga
实验研究了非凝聚热原子蒸气的超辐射光散射。我们发现超辐射增益与量子简并度无关，仅由原子云的形状和所包含的原子数决定。超辐射泵浦-探测光谱也被开发用于测量原子相关函数，揭示了热气体的多普勒宽度限制相干时间和在转变温度以下突然建立的长寿命相干。
Superradiant light scattering from noncondensed, thermal atomic vapors was experimentally studied. We found that superradiant gain is independent of quantum degeneracy and determined only by the shape of the atomic cloud and a contained number of atoms. Superradiant pump-probe spectroscopy was also developed to measure the atomic correlation function, revealing the Doppler-width-limited coherence time of the thermal gas and sudden buildup of long-lived coherence below the transition temperature.