Characterization of the non-resonant radiation damping in coupled cavity photon magnon system

被引：11
作者：
Rao, J. W. [1 ,2 ]
Kaur, S. [1 ]
Fan, X. L. [2 ]
Xue, D. S. [2 ]
Yao, B. M. [3 ]
Gui, Y. S. [1 ]
Hu, C. -M. [1 ]
机构：
[1] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
[2] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 26期
基金：
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词：
ANTIFERROMAGNETIC-RESONANCE;
D O I：
10.1063/1.4990977
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have experimentally investigated the non-resonant radiation damping in the coupled cavity photon-magnon system in addition to the resonant radiation damping which results in the linewidth exchange between the magnon-like and photon-like hybrid modes. The contribution of this non-resonant effect becomes apparent when the cavity photon-magnon resonance frequencies are mismatched. By carefully examining the change in the linewidth and the shift in the magnon resonance as a function of the coupling strength between the cavity photons and magnons, we can quantitatively describe this non-resonant radiation damping by including an additional relaxation channel for the hybridized photon-magnon system. This experimental realization and theoretical modelling of the non-resonant radiation damping in the cavity photon-magnon system may help in the design and adaptation of these systems for practical applications. Published by AIP Publishing.
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页数：5
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