摘要
提出和实验论证了基于量子弱测量系统的高分辨氨基酸种类识别方案,并探究了分辨率的提升规律。该量子弱测量系统利用氨基酸溶液的旋光角充当系统的后选择角,将放大后的光自旋霍尔效应位移作为探针识别氨基酸的种类,通过改变入射角可以提升该系统对旋光角的分辨率。通过合理设计BK7-介质结构界面,使其分辨率比单纯BK7玻璃界面有两个数量级的提升,可达9.7×10-6(°)/μm。这些研究将为氨基酸种类的高精度识别提供理论基础,并拓展量子弱测量的应用范围。
A highresolution scheme for identifying amino acid species on the basis of the quantum weak measurement system is proposed and experimentally demonstrated,and the improvement laws of resolution are explored.In this system,the optical rotation angle of the amino acid solution is taken as the postselection angle,and the amplified optical spin Hall shifts act as a probe to identify the amino acid species.The resolution of the system for the optical rotation angle can be improved by incident angle adjustment.The proper design of the BK7-dielectric structure interface can make the resolution reach 9.7×10−6(°)/μm,with an improvement of two orders of magnitude over that of the pure BK7 glass interface.These studies can provide a theoretical basis for the highprecision identification of the amino acid species and expand the application range of quantum weak measurement.
作者
罗朝明
唐鹏
张勇
万婷
邓艳
张景贵
Luo Zhaoming;Tang Peng;Zhang Yong;Wan Ting;Deng Yan;Zhang Jinggui(School of Physics and Chemistry,Hunan First Normal University,Changsha 410205,Hunan,China;School of Information Science and Engineering,Hunan Institute of Science and Technology,Yueyang 414006,Hunan,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2022年第22期185-191,共7页
Acta Optica Sinica
基金
国家自然科学基金(62075060)
湖南省自然科学基金(2020JJ4033)
湖南省教育厅科学研究项目(20A218,19A198)
湖南省研究生科研创新项目(CX20201143)。
