机译:具有真空诱导相干性的四能级原子系统中的一个和两个光子吸收-放大响应
Department of Physics Huazhong University of Science and Technology Wuhan 430074 China;
Department of Applied Physics School of Basic Science East China Jiaotong University Nanchang 330013 China;
one-photon absorption; two-photon absorption; vacuum-induced coherence; probe amplification;