机译:基于电磁感应透明度的四能级梯形原子系统中的四波混合方案
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;
Centre for Cold Atom Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;
Department of Physics, Xiaogan Normal University, Xiaogan 432100;