A proposal for detecting weak electromagnetic waves around 2.6μm wavelength with Sr optical clock  

作　　者：韩弱水 王伟 汪涛 Ruo-Shui Han;Wei Wang;Tao Wang(Department of Physics,and Chongqing Key Laboratory for Strongly Coupled Physics,Chongqing University,Chongqing 401331,China;Center of Modern Physics,Institute for Smart City of Chongqing University in Liyang,Liyang 213300,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China)

机构地区：[1]Department of Physics,and Chongqing Key Laboratory for Strongly Coupled Physics,Chongqing University,Chongqing 401331,China [2]Center of Modern Physics,Institute for Smart City of Chongqing University in Liyang,Liyang 213300,China [3]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Physics B》2024年第4期452-457,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No.12274045)。

摘　　要：Infrared signal detection is widely used in many fields.Due to the detection principle,however,the accuracy and range of detection are limited.Thanks to the ultra stability of the^(87)Sr optical lattice clock,external infrared electromagnetic wave disturbances can be responded to.Utilizing the ac Stark shift of the clock transition,we propose a new method to detect infrared signals.According to our calculations,the theoretical detection accuracy in the vicinity of its resonance band of 2.6μm can reach the order of 10-14W,while the minimum detectable signal of common detectors is on the order of 10^(-10)W.

关 键 词：infrared signal detection ^(87)Sr optical lattice clock ac Stark shift ultra stability 

分 类 号：O441.4[理学—电磁学]