光学波导中原子干涉的加速度测量  

Acceleration measurement of atomic interference in optical waveguide

作　　者：魏春华 梁磊[1,2] 左承林[1,2] 颜树华 杨俊[3] WEI Chunhua;LIANG Lei;ZUO Chenglin;YAN Shuhua;YANG Jun(Low Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;State Key Laboratory of Aerodynamic, China Aerodynamics Research and Development Center, Mianyang 621000, China;College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China)

机构地区：[1]中国空气动力研究与发展中心低速空气动力研究所,四川绵阳621000 [2]中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳621000 [3]国防科技大学智能科学学院,湖南长沙410073

出　　处：《国防科技大学学报》2021年第3期142-148,共7页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(51275523);空气动力学国家重点实验室研究基金资助项目(SKLA2019040302);高等学校博士学科点专项科研基金资助项目(20134307110009)。

摘　　要：提出一种水平方向、光学波导中原子干涉的加速度测量方案。详细介绍了光路结构、原子团制备以及光学波导的绝热装载等。通过实验手段对测量方案进行验证,首先将87Rb原子团冷却至50 nK的玻色爱因斯坦凝聚态,随后对超冷原子团施加布拉格光进行分束、合束,完成原子干涉过程。实验结果显示,所提干涉测量系统能够实现单轴加速度测量,对未来高精度多轴加速度测量系统的研制具有指导借鉴意义。An acceleration measurement scheme with atom interference in optical waveguide at horizontal direction was presented.The optical structure,radical preparation and optical waveguide adiabatic loading were described in detail.In order to verify the measurement scheme by using the experiment means,the radical 87Rb was cooled into Bose-Einstein condensate,then the splitting and combining of the ultracold radical was achieved by the Bragg diffraction and the process of atom interference was completed.The experiment results show that the interferometer can measure the axial acceleration of the optical waveguide,which is of reference value for the future study of multi-axis acceleration measurement.

关 键 词：原子干涉仪 光学波导 玻色爱因斯坦凝聚态 布拉格衍射 

分 类 号：TH824[机械工程—仪器科学与技术]