原子气室中四波混频线型的实验研究  

The Experimental Investigation of the Line Shape of the Four-wave Mixing in the Atomic Vapor Cell

作　　者：陈良超[1] 孟增明[1] 于旭东[1] 

机构地区：[1]量子光学与光量子器件国家重点实验室,山西大学光电研究所,山西太原030006

出　　处：《量子光学学报》2014年第2期119-123,共5页Journal of Quantum Optics

基　　金：高等学校博士学科点专项科研基金(No.20111401130001)

摘　　要：理论上利用双边费曼图对四波混频过程进行了研究,该方法可直观清晰地展示光与原子相互作用的物理过程。计算了四波混频过程的色散性质。实验上研究了85 Rb原子D2线的四波混频线型,并且对实验结果进行了拟合,两者符合较好。对四波混频线型的研究可加深对四波混频过程的理解,从而促进四波混频过程在量子信息研究中的应用。Theoretically, the four-wave mixing process is studied according to the double-sided Feynman diagram, which can show the physical process of the atom-light interaction clearly. And the susceptibility is calculated. The line shape of the transmission of the four-wave mixing at 8SRb D2 line is experimentally investigated, and the theoretical calculation fits well with the experimental data. The study of the line shape of the four-wave mixing process can enhance the understanding of the nonlinear process, and is helpful for the usage of four-wave mixing in the quantum information research.

关 键 词：四波混频 双边费曼图 微扰近似 

分 类 号：O431[机械工程—光学工程]