Estimating optical lattice alignment by RF spectroscopy  

作　　者：炜熊 张胤 马兆远 陈徐宗 

机构地区：[1]School of Electronics Engineering and Computer Science,Peking University [2]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Science [3]State Key Laboratory of Precision Spectroscopy,East China Normal University

出　　处：《Chinese Optics Letters》2012年第9期1-5,共5页中国光学快报（英文版）

基　　金：supported by the National Fundamental Research Program of China (No. 2011CB921501);the National Natural Science Foundation of China (Nos.61027016, 61078026, and 10934010)

摘　　要：A method that uses radio frequency （RF） spectroscopy to evaluate the alignment of an optical lattice is proposed and demonstrated. A one-dimensional （1D） optical lattice is applied along the long axis of a cigar-shaped Bose-Einstein condensate （BEC） in a magnetic trap. The RF spectra of condensates with and without the optical lattice are analyzed, measured, and compared with the condition in which the lattice is misaligned with the BEC. The proposed method greatly optimizes the optical alignments of the lattices.A method that uses radio frequency （RF） spectroscopy to evaluate the alignment of an optical lattice is proposed and demonstrated. A one-dimensional （1D） optical lattice is applied along the long axis of a cigar-shaped Bose-Einstein condensate （BEC） in a magnetic trap. The RF spectra of condensates with and without the optical lattice are analyzed, measured, and compared with the condition in which the lattice is misaligned with the BEC. The proposed method greatly optimizes the optical alignments of the lattices.

关 键 词：ALIGNMENT Optical materials Plasma confinement Radiofrequency spectroscopy Statistical mechanics 

分 类 号：O562.3[理学—原子与分子物理]