Ringing spectroscopy in the magnomechanical system  

作　　者：Guan-Ting Xu Mai Zhang Zheng-Yu Wang Yu Wang Yu-Xi Liu Zhen Shen Guang-Can Guo Chun-Hua Dong 

机构地区：[1]Key Laboratory of Quantum Information,Chinese Academy of Sciences,University of Science and Technology of China,Hefei,Anhui 230026,China [2]CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei,Anhui 230026,China [3]Institute of Microelectronics,Tsinghua University,Beijing 100084,China [4]Hefei National Laboratory,University of Science and Technology of China,Hefei,Anhui 230088,China

出　　处：《Fundamental Research》2023年第1期45-49,共5页自然科学基础研究（英文版）

基　　金：supported by the National Key Research and Development Program of China(2020YFB2205801);Innovation program for Quantum Science and Technology(2021ZD0303203);National Natural Science Foundation of China(11934012,11874342 and 92050109);USTC Research Funds of the Double First-Class Initiative(YD2470002002);the Fundamental Research Funds for the Central Universities.

摘　　要：The ringing phenomenon has been studied in optical whispering gallery mode(WGM)resonators and can be used to sense the ultrafast process in spectroscopy.Here we observe the ringing phenomenon in a magnomechanical system for the first time,which is induced by the interference between the microwave photons converted from the damped phonons and the probing microwave photons.This interference eventually appears as a transparency window even along with the ringing phenomenon in the measured microwave reflection spectrum,which is influenced by the scanning speed and the input power.Then,the ringing spectroscopy is used to measure the coupling strength between the magnon and phonon modes,and outline the displacement profile of𝑆1,2,2 mechanical mode in a YIG microsphere,demonstrating the theoretical analysis.In addition,the ring-up spectroscopy is developed in our magnomechanical system,laying the foundation for fast sensing based on mechanical motion.

关 键 词：Whispering gallery mode MICROCAVITY Magnomechanical system Ringing phenomenon Ringing-up spectroscopy 

分 类 号：O41[理学—理论物理]