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Laser intensity induced transparency in atom-molecular transition process

期刊名称：Chinese Science Bulletin
时间：2014.3.1
页码：2731-2735
分类：O53[理学—等离子体物理;理学—物理] O441.3[理学—电磁学;理学—物理]
作者机构：[1]State Key Laboratory of Quantum Optics and Quantum OpticsDevices, Institute of Laser Spectroscopy, College of Physics andElectronics Engineering, Shanxi University,Taiyuan 030006, China
相关基金：This work was supported by the National Basic Research Program of China （2012CB921603）, the National High Technology Research and Development Program of China （2011AA010801）, the Program for Changjiang Scholars and Innovative Research Team in University （IRT13076）, the International Science and Technology Cooperation Program of China （2011DFA12490）, the National Natural Science Foundation of China （NSFC）（61378014, 61308023 and 10934004）, the NSFC Project for Excellent Research Team （61121064）, the Specialized Research Fund for the Doctoral Program of Higher Education of China （20131401120012） and the Natural Science Foun-dation （NSF） for Young Scientists of Shanxi Province （2013021005-1 ）.
相关项目：量子光学与光量子器件研究

关键词：激光强度, 电磁感应, 原子分子, 跃迁, 透明效果, 分子水平, 散射长度, PA, Atom-molecular transition , UltracoldCesium molecules, Laser induced frequency shiftLaser intensity induced transparency

中文摘要：

我们建议新透明性机制，它基于激光紧张导致了的 photoassociation (PA ) 为在 PA 形成的 ultracold 铯分子的过渡频率移动计划。PA 激光紧张应当在原子分子回声前变化。因此，为 PA 激光的显著透明效果被期望出现在原来的反响的过渡的线的附近，在 PA 激光紧张的变化导致激动的分子的层次的移动的地方。机制与电磁地导致的透明性效果不同并且为关于为铯的散布长度的进一步的研究有趣原子冷凝物。

英文摘要：

We propose a new transparency mechanism, which is based on photoassociation （PA） laser intensity induced transitional frequency shift for ultracold cesium molecules formed in PA scheme. The PA laser intensity is supposed to change before the atommolecule resonance. Thus, a remarkable transparent effect for PA laser is expected to appear in the vicinity of original resonant transitional line, where the variation of PA laser intensity induces the shift of the excited molecular levels. The mechanism is different from electromagnetically induced transparency effect and interesting for further research on the scattering length for cesium atomic condensate.