摘要
为了研究双曲正弦平方高斯光束通过四能级EIT介质的传输特性,利用广义惠更斯-菲涅耳衍射积分公式推导双曲正弦平方高斯光束通过四能级EIT介质的传输解析公式,并利用该公式分析双曲正弦平方高斯光束通过四能级EIT介质的传输特性。研究发现,通过改变偏心参数或者四能级EIT介质控制光的拉比频率就可以实现对不同传输位置的光束进行整形,同时发现了一种调控双曲正弦平方高斯光束光强的新方法。
In order to explore the propagation properties of sinh-squared-Gaussian beams(ShSGB)through a four-level electromagnetically induced transparency(EIT)medium,the article deduces the analytical formula of ShSGB passing through the four-level EIT medium,based on the generalized Huygens-Fresnel diffraction integral theory.Furthermore,the intensity of the beams through the four-level EIT medium is obtained by using the formula.The results show that it is feasible to shape beams in the manner of adjusting the decentered parameter or Rabi frequency of the four-level EIT medium at different propagation positions,with a new method of modulating the ShSGB intensity being discovered.
出处
《浙江科技学院学报》
CAS
2017年第3期161-165,共5页
Journal of Zhejiang University of Science and Technology
基金
浙江省教育厅科研计划项目(Y201533236)
