文献类型：期刊文献

中文题名：原子相干引起的五阶非线性增强

英文题名：Enhancement of Fifth-Order Nonlinearity Induced by Atomic Coherence

作者：刘羽桐[1];钮月萍[1];林功伟[1];龚尚庆[1]

机构：[1]华东理工大学理学院,上海200237

年份：2017

卷号：37

期号：7

起止页码：203

中文期刊名：光学学报

外文期刊名：Acta Optica Sinica

收录：CSTPCD;;EI(收录号：20173504103789);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金(11474092);上海市教委重点项目(14ZZ056)

语种：中文

中文关键词：非线性光学;原子相干;电磁诱导透明;非线性系数;腔透射谱法

外文关键词：nonlinear optics; atomic coherence; electromagnetically induced transparency; nonlinear coefficient; cavity transmission spectroscopy

摘要：采用腔透射谱法测量了Λ型三能级系统的五阶克尔非线性系数。对二能级和Λ型三能级系统的五阶非线性系数进行数值模拟,比较发现,原子相干对非线性系数具有增强作用。同时将三阶和五阶极化率的模拟结果与测量结果进行对比,发现两者具有很好的一致性。
The fifth-order Kerr nonlinear coefficient of Λ-type three-level system is measured using cavity transmission spectroscopy.The fifth-order nonlinear coefficients for two-level and Λ-type three-level systems are numerically simulated.Comparing the results of numerical simulation,it is found that atomic coherence has an enhanced effect on nonlinear coefficients. Meanwhile,the simulation results of the third-and fifth-order polarizabilities are compared with the measured results,and it is found that the two results have good consistency.