基于量子技术的原子沉积光栅的研究进展与典型应用  

Research advances and typical applications of atomic deposition grating based on quantum technology

作　　者：雷李华[1,2] 梁利杰 邓晓 LEI Lihua;LIANG Lijie;DENG Xiao(Shanghai Institute of Measurement and Testing Technology,Shanghai 201203,China;Shanghai Key Laboratory of Online Test and Control Technology,Shanghai 201203,China;School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海市计量测试技术研究院,上海201203 [2]上海在线检测与控制技术重点实验室,上海201203 [3]同济大学物理科学与工程学院,上海200092

出　　处：《红外与激光工程》2024年第11期224-234,共11页Infrared and Laser Engineering

基　　金：国家重点研发计划项目(2021YFF0603300);计量与校准技术实验室基金项目(JLKG2024001B001);国家市场监督管理总局科技计划项目(2023MK025)。

摘　　要：基于量子基准的精密测量技术建立在量子力学原理上,以超越经典方法的测量精度,成为现代科技发展的重要推动力。铬原子光刻光栅基于冷原子量子态的操控技术而制备,是精密测量领域的关键元件,其制备技术与应用研究备受关注。其可作为纳米级长度标准物质,实现微纳尺度高精密量检设备的长度溯源。文中分析了铬原子光刻光栅的制备原理;综述了国内外原子光刻光栅的研究现状及其在几何量精密测量中的应用,并探讨了未来的发展方向,以提升铬原子光刻光栅在计量领域的应用水平。Significance The implementation of the new definitions of international basic units based on fundamental physical constants in 2019 marked the official and comprehensive entry of precision measurement into the quantum era.In 2022,China clearly stated its intention to establish a national modern advanced measurement system centered on quantum metrology,with a focus on researching and establishing quantum measurement standards,exploring quantum metrology technologies based on quantum effects and physical constants,and promoting the upgrading and renewal of the measurement standard system.The atomic lithography grating,a nano-length scale based on quantum effects,has a grating pitch that is traced back to atomic transition frequencies.It can be directly used for instrument calibration without relying on the fixed value of metrological instruments,effectively shortening the traceability chain of nano-length measurement.The"Quantization of Measurement Units"has overturned the traditional hierarchical metrological traceability system.By adopting quantum measurement standards,it significantly improves the accuracy and stability of value reproduction,enabling the reproduction of values at any time,in any place,and by any entity,thereby achieving a flat traceability.Atomic lithography gratings achieve sub-nanometer accuracy with good consistency and can be mass-produced,making them promising for applications in the establishment of nano-scale length measurement systems,quantum precision measurement,instrument calibration,and other fields.MCCLELLAND J J and colleagues opted for chromium atoms,successfully fabricating a chromium grating.Since then,numerous researchers have embarked on preparing quantum gratings using various metal atoms.Domestic research into the preparation technology of quantum gratings commenced in 1999,and in 2002,LI Tongbao and his team achieved a milestone by utilizing atomic lithography technology to produce China's first quantum grating.Currently,the preparation technology of atomic lithography grat

关 键 词：光栅标准物质 原子光刻 原子跃迁频率 量子基准 

分 类 号：TB9[一般工业技术—计量学] TB921[机械工程—测试计量技术及仪器]