Nonreciprocal microwave transmission under the joint mechanism of phase modulation and magnon Kerr nonlinearity effect

查看全文 作　　者：Cui [1]Kong;Jibing [1]Liu;Hao [2]Xiong

机构地区：[1]College of Physics and Electronic Science,Hubei Normal University,Huangshi 435002,China;[2]School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Frontiers of physics》索引2023年第18卷第1期,共10页

基　　金：the National Natural Science Foundation of China(Grant Nos.12105092 and 12022507);Program for Innovative Teams of Outstanding Young and Middle-aged Researchers in the Higher Education Institution of Hubei Province(No.T2020014). 摘　　要：Nonreciprocal microwave devices,in which the transmission of waves is non-symmetric between two ports,are indispensable for the manipulation of information processing and communication.In this work,we show the nonreciprocal microwave transmission in a cavity magnonic system under the joint mechanism of phase modulation and magnon Kerr nonlinearity effect.In contrast to the schemes based on the standard phase modulation or magnon Kerr nonlinearity,we find that the joint mechanism enables the nonreciprocal transmission even at low power and makes us obtain a high nonreciprocal isolation ratio.Moreover,when two microwave modes are coupled to the magnon mode via a different coupling strength,the presented strong nonreciprocal response occurs,and it makes the nonreciprocal transmission manipulating by the magnetic field within a large adjustable range possible,which overcomes narrow operating bandwidths.This study may provide promising opportunities to realize nonreciprocal structures for wave transmission. 关键词：nonreciprocal microwave transmission phase modulation magnon Kerr nonlinearity effect

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Nonreciprocal microwave transmission under the joint mechanism of phase modulation and magnon Kerr nonlinearity effect

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