双曲正弦平方高斯光束通过EIT介质的传输特性
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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.
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.
引文
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[2]杜英杰,杨战营,白晋涛,等.电磁感应透明介质的高阶非线性特性[J].光学学报,2014,34(6):0627001-1.
[3]佘彦超,张蔚曦,王登龙.电磁感应透明介质中非线性法拉第偏转[J].物理学报,2011,60(6):064205-1.
[4]赵虎,李铁夫,刘建设,等.基于超导量子比特的电磁感应透明研究进展[J].物理学报,2012,61(15):154214-1.
[5]唐宏,王登龙,张蔚曦,等.纵波光学声子耦合对级联型电磁感应透明半导体量子阱中暗-亮光孤子类型的调控[J].物理学报,2017,66(3):034202-1.
[6]杜英杰,杨战营,谢小涛,等.电磁感应透明的高阶非线性效应对光孤子的影响[J].光学学报,2015,35(2):0227002-1.
[7]巴诺,王磊,吴向尧,等.一维原子晶格中基于电磁感应透明的可调控光子带隙[J].光子学报,2015,44(6):0627002-1.
[8]许森东,徐弼军.Airy光束在A型三能级EIT介质中的传输特性研究[J].量子电子学报,2013,30(5):554.
[9]庄飞,沈建其,叶军.调控电磁感应透明气体折射率实现可控光子带隙结构[J].物理学报,2007,56(1):541.
[10]黄永超,张廷蓉.复变量双曲正弦高斯光束在左手材料中的传输[J].光学与光电技术,2015,13(4):75.
[11]朱开成,朱正和,唐慧琴.双曲余弦平方-高斯光束的传输特性研究[J].激光技术,2002,26(3):192.
[12]龚霞,张廷蓉,杨玉婷,等.双曲正弦平方高斯光束通过左手平板材料的传输特性[J].中国激光,2016,43(6):0605001-1.
[13]李艳桃,张廷蓉,张伟林,等.双曲正弦平方-高斯光束在单轴晶体中垂直于光轴的传输[J].激光与光电子学进展,2012,49(6):062601-1.
[14]王喜庆.双曲正弦平方-高斯光束的聚焦特性[J].学术动态,2006(1):27.
[15]ZHUANG F,SHEN J,DU X,et al.Propagation and modulation of Airy beams through a four-level electromagnetic induced transparency atomic vapor[J].Optics Letters,2012,37(15):3055.