%0 Journal Article %T A THREE-PHOTON VECTOR MODEL
三光子矢量模型 %A YE PEI-XIAN %A
叶佩弦 %J 物理学报 %D 1979 %I %X It is shown that the optical Eabi precession model developed by Feynman, Vernon and Hellwarth for two-level systems can be extended not only to discuss the two-photon resonant coherent interaction, but also to the case of three photons. Using this model and the adiabatic following approximation, the third-order polarization expression in an intense and (or) resonant optical field is obtained, which differs from that obtained by perturbation theory. The saturation phenomena in the third-order resonant non-linear effects are also discussed. %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=ACCBF4D5D57D29B1&yid=8C8371356FB4C85C&vid=D3E34374A0D77D7F&iid=94C357A881DFC066&sid=9971A5E270697F23&eid=7C3A4C1EE6A45749&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0