Open AccessCoherence effect of high excited state atoms
Author(s) -
Zhao Jian-Dong,
Xin Jie
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.193302
Subject(s) - excited state , coherence (philosophical gambling strategy) , atomic physics , laser , dispersion (optics) , physics , absorption (acoustics) , ground state , density matrix , electric field , atomic system , optics , quantum mechanics , quantum
The ladder three-level system including ground state, excited state and high excited state is investigated by using the density matrix equations. The coherence effect of ladder three-level system is analyzed, and absorption and dispersion curves of weak probe laser are obtained. The effects of interaction between high excited atoms and external electric field on the coherence effect are also investigated. The result shows that the interaction between high excited atoms or the external field can make the absorption curve and the dispersion curve shifted.