%0 Journal Article
%T MICROSCOPIC EXPRESSION OF NONLINEAR SUSCEPTIBILITY IN A SIX-LEVEL MODEL<br>六能级分子系统非线性极化率的微观描述
%A Wang Yuxiao
%A Yang Miao
%A Yang Kun
%A Li Chunfei
%A <br>王玉晓
%A 杨淼
%J 光子学报
%D 1997
%I 
%X Adopting density matrix theory and a six-energy-level model,the microscopic expression nonlinear susceptibility,nonlinear absorption coefficient and nonlinear refraction indices are deduced.All of them are proportional to the linear sum of the population in each energy-leveI. The parameters,refraction volume and absorption cross - section, are introduced into describing the characteristic of refraction and absorption.
%K Nonlinear susceptibility
%K Density matrix theory
%K Refraction volume
%K Absorption cross-section<br>非线性极化率
%K 密度矩阵
%K 吸收截面
%K 有机分子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=1A115F91D0158707338BA207089713EE&yid=5370399DC954B911&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=0BD4FAD4A90498AB&eid=4F0B2F798E08B761&journal_id=1004-4213&journal_name=光子学报&referenced_num=1&reference_num=4