Acta Optica SinicaElectromagnetically Induced Gain Based on Degenerate Two-Level Atomic System韩宇宏 Han Yuhong, 车少娜 CHE Shao-na, 王丹 Wang Dan, 周海涛 Zhou HaitaoPublished Jan 1, 2018• 0 citationsPublisherDOI10.3788/aos201838.0302001