Zhang Zhaoyang, Zheng Huaibin, Yao Xin, Tian Yaling, Che Junling, Wang Xiuxiu, Zhu Dayu, Zhang Yanpeng, Xiao Min
Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.
Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA &National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China.
Sci Rep. 2015 Jun 8;5:10462. doi: 10.1038/srep10462.
We study the enhancement and suppression of different multi-waving mixing (MWM) processes in a Rydberg-EIT rubidium vapor system both theoretically and experimentally. The nonlinear dispersion property of hot rubidium atoms is modulated by the Rydberg-Rydberg interaction, which can result in a nonlinear phase shift of the relative phase between dark and bright states. Such Rydberg-induced nonlinear phase shift can be quantitatively estimated by the lineshape asymmetry in the enhancedand suppressed MWM processes, which can also demonstrate the cooperative atom-light interaction caused by Rydberg blockaded regime. Current study on phase shift is applicable to phase-sensitive detection and the study of strong Rydberg-Rydberg interaction.
我们在理论和实验上研究了里德堡-电磁诱导透明铷蒸汽系统中不同多波混频(MWM)过程的增强和抑制。热铷原子的非线性色散特性由里德堡-里德堡相互作用调制,这会导致暗态和亮态之间相对相位的非线性相移。这种里德堡诱导的非线性相移可以通过增强和抑制的MWM过程中的线形不对称性进行定量估计,这也可以证明由里德堡阻塞机制引起的原子-光协同相互作用。目前关于相移的研究适用于相敏检测和强里德堡-里德堡相互作用的研究。