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原子相干引起的五阶非线性增强

Enhancement of Fifth-Order Nonlinearity Induced by Atomic Coherence

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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。

Abstract

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.

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中图分类号:O437

DOI:10.3788/aos201737.0719002

所属栏目:非线性光学

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

收稿日期:2017-01-17

修改稿日期:2017-04-03

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作者单位    点击查看

刘羽桐:华东理工大学理学院, 上海 200237
钮月萍:华东理工大学理学院, 上海 200237
林功伟:华东理工大学理学院, 上海 200237
龚尚庆:华东理工大学理学院, 上海 200237

联系人作者:刘羽桐(mildsweetlight@sina.com)

备注:刘羽桐(1992-),女,硕士研究生,主要从事量子相干调控方面的研究。

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引用该论文

Liu Yutong,Niu Yueping,Lin Gongwei,Gong Shangqing. Enhancement of Fifth-Order Nonlinearity Induced by Atomic Coherence[J]. Acta Optica Sinica, 2017, 37(7): 0719002

刘羽桐,钮月萍,林功伟,龚尚庆. 原子相干引起的五阶非线性增强[J]. 光学学报, 2017, 37(7): 0719002

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