首页|Microwave electrometry with Rydberg atoms in a vapor cell using microwave amplitude modulation

Microwave electrometry with Rydberg atoms in a vapor cell using microwave amplitude modulation

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
We have theoretically and experimentally studied the dispersive signal of the Rydberg atomic electromagnetically-induced transparency(EIT)Autler-Townes(AT)splitting spectra obtained using amplitude modulation of the microwave(MW)electric field.In addition to the two zero-crossing points interval △fzeros,the dispersion signal has two positive maxima with an interval defined as the shoulder interval △fsho,which is theoretically expected to be used to measure a much weaker MW electric field.The relationship of the MW field strength EMW and △fsho is experimentally studied at the MW frequencies of 31.6 GHz and 9.2 GHz respectively.The results show that △fsho can be used to characterize the much weaker EMW than that of △fzeros and the traditional EIT-AT splitting interval △fm;the minimum EMW measured by△fsho is about 30 times smaller than that by △fm.As an example,the minimum EMW at 9.2 GHz that can be characterized by △fsho is 0.056 mV/cm,which is the minimum value characterized by the frequency interval using a vapor cell without adding any auxiliary fields.The proposed method can improve the weak limit and sensitivity of EMW measured by the spectral frequency interval,which is important in the direct measurement of weak EMW.

quantum sensorRydberg atomselectromagnetically induced transparencyamplitude modulation

郝建海、贾凤东、崔越、王昱寒、周飞、刘修彬、张剑、谢锋、白金海、尤建琦、王宇、钟志萍

展开 >

School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

Institute of Nuclear and New Energy Technology,Collaborative Innovation Center of Advanced Nuclear Energy Technology,Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education,Tsinghua University,Beijing 100084,China

Science and Technology on Metrology and Calibration Laboratory,Changcheng Institute of Metrology & Measurement,Aviation Industry Corporation of China,Beijing 100095,China

CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100190,China

展开 >

北京市自然科学基金国家重点研发计划国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金中国科学院重点研究项目Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics中央高校基本科研业务费专项中国科学院青年创新促进会项目

12120142017YFA03049002017YFA04023001160433411604177U2031125XDPB08-3KF201807

2024

10.1088/1674-1056/ad1a8f

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
  • 43