摘要
We report on observing photon recoil effects in the absorption of a single monochromatic light at 689 nm through an ultracold ^(88)Sr gas,where the recoil frequency is comparable to natural linewidth of the narrow-line transition 5s^(2) ^(1)S_(0)-5s5p ^(3)P_(1) in strontium.In the regime of high-saturation,the absorption profile becomes asymmetric due to the photon-recoil shift,which is of the same order as the natural linewidth.The lineshape is described by an extension of the optical Bloch equations including the momentum transfers to atoms during emission and absorption of photons.Our work reveals the photon recoil effects in a simplest single-beam absorption setting,which is of significant relevance to other applications such as saturation spectroscopy,Ramsey interferometry,and absorption imaging.
作者
Fachao Hu
Canzhu Tan
Yuhai Jiang
Matthias Weidemüller
Bing Zhu
胡发超;檀灿竹;江玉海;Matthias Weidemüller;朱兵(Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei 230026,China;CAS Center For Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences(CAS),Shanghai 201210,China;Physikalisches Institut,Universität Heidelberg,Im Neuenheimer Feld 226,69120 Heidelberg,Germany)
基金
supported by the Anhui Initiative in Quantum Information Technologies
support from the National Natural Science Foundation of China (Grant No. 11827806)
