INTERFERENCE EFFECTS IN DIFFERENT FIFTH-ORDER POLARIZATIONS WITH BROADBAND NOISY LIGHT
Zhang Yan-peng (张彦鹏)ab, Wu Hong-cai (吴洪才), Lu Ke-qing (卢克清)a, Hou Xun (侯洵)c, Cid B. De Araújoc,
a Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; b State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; c Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
Abstract Based on the second-order coherence function, we have studied a phase-conjugate ultrafast modulation spectroscopy due to the interference between the fifth- and fifth-order optical polarizations in cascade three-level Doppler-broadened system. It is found that the temporal behaviour of the beat signal depends on the stochastic properties of the lasers and the transverse relaxation rate of the transition. The beat signal depends on the second-order coherence function, which is determined by the laser line shape. Since different stochastic models of the laser field only affect higher than second-order coherence functions, they have little influence on the general temporal modulation behaviour of the beat signal. The cases that pump beams have either narrow band or broadband linewidth are considered and it has been found that for both cases the overall accuracy for the energy-level difference measurement is determined by the homogeneous linewidths of the optical transitions. Finally, the spatial modulation behaviour of the beat signal has also been discussed.
Received: 15 July 2000
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No.69978019) and the State Key Laboratory Foundation of Transient Optics Technology (Grant No.YAK20006).
Cite this article:
Zhang Yan-peng (张彦鹏), Wu Hong-cai (吴洪才), Lu Ke-qing (卢克清), Hou Xun (侯洵), Cid B. De Araújo INTERFERENCE EFFECTS IN DIFFERENT FIFTH-ORDER POLARIZATIONS WITH BROADBAND NOISY LIGHT 2001 Chinese Physics 10 206
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