Controllable electromagnetically induced grating in a cascade-type atomic system  

作　　者：Jin-Peng Yuan Chao-Hua Wu Yi-Hong Li Li-Rong Wang Yun Zhang Lian-Tuan Xiao Suo-Tang Jia 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China [3]Department of Engineering Science,The University of Electro-Communications,1-5-1 Chofugaoka,Chofu-shi,Tokyo,182-8585,Japan

出　　处：《Frontiers of physics》2019年第5期121-127,共7页物理学前沿（英文版）

基　　金：This work was supported by the National Key R & D Program of China (Grant No. 2017YFA0304203), the National Natural Science Foundation of China (Grant Nos. 61575116, 61875112, 61705122, 61728502, 91736209, and 11434007);Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China (Grant No. IRT 17R70);the Program for Sanjin Scholars of Shanxi Province, Applied Basic Research Project of Shanxi Province (No. 201701D221004);Key Research and Development Program of Shanxi Province for International Cooperation (201803D421034);111 project (Grant No. D18001);the Fund for Shanxi “1331 Project” Key Subjects Construction.

摘　　要：A controllable electromagnetically induced grating (EIG) is experimentally realized in a coherent rubidium ensemble with 5S1/2-5P3/2-5D5/2 cascade configuration.In our work,a whole picture de-scribing the relation between the first-order diffraction efficiency and the power of the coupling field is experimentally presented for the first time,which agrees well with the theoretical prediction.More important,by fine tuning the experimental parameters,the first-order diffraction efficient of as high as 25% can be achieved and a clear three-order diffraction pattern is also observed.Such a controllable periodic structure can provide a powerful tool for studying the control of light dynamics,pave the way for realizing new optical device.

关 键 词：coherent optical effects DIFFRACTION GRATINGS MULTIPHOTON processes 

分 类 号：O4[理学—物理]