Parametric amplification of Rydberg six- and eight-wave mixing processes
We study the parametric amplification of electromagnetically induced transparency-assisted Rydberg six- and eight-wave mixing signals through a cascaded nonlinear optical process in a hot rubidium atomic ensemble both theoretically and experimentally. The shift of the resonant frequency (induced by the Rydberg–Rydberg interaction) of parametrically amplified six-wave mixing signal is observed. Moreover, the interplays between the dressing effects and Rydberg–Rydberg interactions in parametrically amplified multiwave mixing signals are investigated. The linear amplification of Rydberg multiwave mixing processes with multichannel nature acts against the suppression caused by Rydberg–Rydberg interaction and dressing effect.
基金项目：National Key R&D Program of China (2017YFA0303700); National Natural Science Foundation of China (NSFC)10.13039/501100001809 (11474228, 11604256, 61605154); Key Scientific and Technological Innovation Team of Shaanxi Province (2014KCT-10); Natural Science Foundation of Shaanxi Province10.13039/501100007128 (2017JQ6039); China Postdoctoral Science Foundation10.13039/501100002858 (2016M600776).
Ji Guo：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
Bingling Gu：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
Ling Hao：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
Gaoguo Yang：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
Kun Wang：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
Yanpeng Zhang：Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Laboratory of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China
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Zhaoyang Zhang, Ji Guo, Bingling Gu, Ling Hao, Gaoguo Yang, Kun Wang, and Yanpeng Zhang, "Parametric amplification of Rydberg six- and eight-wave mixing processes," Photonics Research 6(7), 713-720 (2018)