Acta Physica Sinica
ENERGY-LEVEL DIFFERENCE AND LASER ABSOLUTE FREQUENCY MEASUREMENT BY POLARIZATION BEATS SPECTROSCOPY WITH PHASE-CONJUGATION GEOMETRY
ZHANG YAN-PENG, Gan Chen-Li, Zhu Jing-Ping, TANG TIAN-TONG, Panming Fu, (1)西安交通大学光电子系,西安 710049; (2)中国科学院物理研究所,北京 100080