中国物理B ›› 2013, Vol. 22 ›› Issue (12): 127802-127802.doi: 10.1088/1674-1056/22/12/127802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Interplay between out-of-plane magnetic plasmon and lattice resonance for modified resonance lineshape and near-field enhancement in double nanoparticles array

丁佩a, 王俊俏b, 何金娜b, 范春珍b, 蔡根旺b, 梁二军b   

  1. a Department of Mathematics and Physics, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China;
    b School of Physical Science and Engineering and Key Laboratory of Materials Physics of Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China
  • 收稿日期:2013-02-21 修回日期:2013-04-19 出版日期:2013-10-25 发布日期:2013-10-25
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10974183, 11104252, 61274012, and 51072184), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20114101110003), the Aeronautical Science Foundation of China (Grant No. 2011ZF55015), the Basic and Frontier Technology Research Program of Henan Province, China (Grant Nos. 112300410264 and 122300410162), the Foundation of University Young Key Teacher from Henan Province, China (Grant No. 2012GGJS-146), the Key Program of Science and Technology of Henan Education Department, China (Grant Nos. 12A140014 and 13A140693), and the Postdoctoral Research Sponsorship of Henan Province, China (Grant No. 2011002).

Interplay between out-of-plane magnetic plasmon and lattice resonance for modified resonance lineshape and near-field enhancement in double nanoparticles array

Ding Pei (丁佩)a, Wang Jun-Qiao (王俊俏)b, He Jin-Na (何金娜)b, Fan Chun-Zhen (范春珍)b, Cai Gen-Wang (蔡根旺)b, Liang Er-Jun (梁二军)b   

  1. a Department of Mathematics and Physics, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China;
    b School of Physical Science and Engineering and Key Laboratory of Materials Physics of Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China
  • Received:2013-02-21 Revised:2013-04-19 Online:2013-10-25 Published:2013-10-25
  • Contact: Ding Pei E-mail:dingpei@zzia.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10974183, 11104252, 61274012, and 51072184), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20114101110003), the Aeronautical Science Foundation of China (Grant No. 2011ZF55015), the Basic and Frontier Technology Research Program of Henan Province, China (Grant Nos. 112300410264 and 122300410162), the Foundation of University Young Key Teacher from Henan Province, China (Grant No. 2012GGJS-146), the Key Program of Science and Technology of Henan Education Department, China (Grant Nos. 12A140014 and 13A140693), and the Postdoctoral Research Sponsorship of Henan Province, China (Grant No. 2011002).

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摘要： Two-dimensional double nanoparticle (DNP) arrays are demonstrated theoretically, supporting the interaction between out-of-plane magnetic plasmons and in-plane lattice resonances, which can be achieved by tuning the nanoparticle height or the array period due to the height-dependent magnetic resonance and the periodicity-dependent lattice resonance. The interplay between the two plasmon modes can lead to a remarkable change in resonance lineshape and an improvement on magnetic field enhancement. Simultaneous electric field and magnetic field enhancement can be obtained in the gap region between neighboring particles at two resonance frequencies as the interplay occurs, which presents “open” cavities as electromagnetic field hot spots for potential applications on detection and sensing. The results not only offer an attractive way to tune the optical responses of plasmonic nanostructure, but also provide further insight into the plasmon interactions in periodic nanostructure or metamaterials comprising multiple elements.

关键词: magnetic plasmon, lattice resonance, field enhancement, nanoparticles array

Abstract: Two-dimensional double nanoparticle (DNP) arrays are demonstrated theoretically, supporting the interaction between out-of-plane magnetic plasmons and in-plane lattice resonances, which can be achieved by tuning the nanoparticle height or the array period due to the height-dependent magnetic resonance and the periodicity-dependent lattice resonance. The interplay between the two plasmon modes can lead to a remarkable change in resonance lineshape and an improvement on magnetic field enhancement. Simultaneous electric field and magnetic field enhancement can be obtained in the gap region between neighboring particles at two resonance frequencies as the interplay occurs, which presents “open” cavities as electromagnetic field hot spots for potential applications on detection and sensing. The results not only offer an attractive way to tune the optical responses of plasmonic nanostructure, but also provide further insight into the plasmon interactions in periodic nanostructure or metamaterials comprising multiple elements.

Key words: magnetic plasmon, lattice resonance, field enhancement, nanoparticles array

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
42.25.Bs (Wave propagation, transmission and absorption) 78.20.Bh (Theory, models, and numerical simulation) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))