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Integrated multi-scheme digital modulations of spoof surface plasmon polaritons

查看全文 作　　者：Lepeng [1]ZHANG;Haochi [1]ZHANG;Min [2]TANG;Peihang [1]HE;Lingyun [1]NIU;Liangliang [3]LIU;Jiayuan [1]LU;Wenxuan [1]TANG;Junfa [2]MAO;Tiejun [1]CUI 高影响力作者 机构地区：[1]State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China;[2]Key Laboratory of Ministry of Education of China for Research of Design and Electromagnetic Compatibility of High Speed Electronic Systems,Shanghai Jiao Tong University,Shanghai 200240,China;[3]Research Center of Applied Electromagnetics,School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China高影响力机构 出　　处：《Science China(Information Sciences)》索引2020年第63卷第10期,共10页高影响力期刊 基　　金：supported by National Key Research and Development Program of China(Grant Nos.2017YFA0700201,2017YFA0700202,2017YFA0700203);National Natural Science Foundation of China(Grant Nos.61571117,61631007,61701108,61871127);the 111 Project(Grant No.111-2-05). 摘　　要：The future wireless communications require different kinds of modulation functions to be integrated in a single intelligent device under different scenarios.Here,we propose a multi-scheme digital modulator to achieve this goal based on integrated spoof surface plasmon polaritons(SPP)in different frequency bands.By constructing switchable spoof SPP units,the propagating wave in the proposed spoof SPP waveguide can be manipulated in amplitude domain,frequency domain,and phase domain.As a proof of concept,the integrated multi-scheme digital modulator is experimentally verified to achieve at least three kinds of modulations,including amplitude shift keying,phase shift keying,and frequency shift keying,in a single digital spoof plasmonic waveguide.The simulated and measured results show that the modulator has excellent property of field confinement and is capable of frequency-domain modulation.Hence,the multi-scheme modulation property makes the proposed SPP digital modulator be an effective and reliable candidate for efficient manipulations of SPP waves and for advanced modulation technology. 关 键 词：spoof surface plasmon polaritons dynamic manipulation multi-scheme modulation dispersion engineering frequency modulation
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