Generation of a blue-detuned optical storage ring by a metasurface and its application in optical trapping of cold molecules  

作　　者：凌晨 尹亚玲 刘泱 李林 夏勇 Chen Ling;Yaling Yin;Yang Liu;Lin Li;Yong Xia(State Key Laboratory of Precision Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;School of Physics and Astronomy,Sun Yat-sen University,Zhuhai 519082,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]State Key Laboratory of Precision Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China [2]School of Physics and Astronomy,Sun Yat-sen University,Zhuhai 519082,China [3]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Physics B》2023年第2期229-235,共7页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 12174115, 11974434, 91836103, and 11374100);the Natural Science Foundation of Guangdong Province, China (Grant No. 2020A1515011159);the Science and Technology Program of Guangzhou (Grant No. 202102080380);Shanghai Pujiang Program (Grant No. 20PJ1403400)。

摘　　要：A scheme for storage of cold molecules in a hollow optical ring generated by a metasurface grating is proposed.The characteristics and intensity distribution related to the ring’s structural parameters and fabrication error tolerance are theoretically studied. The optical potential and dipole force required for the ring to trap magnesium monofluoride(MgF)molecules are also calculated. The dynamic behavior of MgF molecules in the storage ring is simulated by a Monte Carlo method, which shows that a metasurface-based optical storage ring can be used to trap molecules and is an interesting platform for research into ultracold quantum gases and their quantum-state manipulation.

关 键 词：METAMATERIALS beam characteristics trapping of molecules 

分 类 号：O561[理学—原子与分子物理]