中国物理B ›› 2017, Vol. 26 ›› Issue (7): 74220-074220.doi: 10.1088/1674-1056/26/7/074220

• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇    下一篇

Asymmetrical plasmon reflections in tapered graphene ribbons with wrinkle edges

Cui Yang(杨翠), Runkun Chen(陈闰堃), Yuping Jia(贾玉萍), Liwei Guo(郭丽伟), Jianing Chen(陈佳宁)   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Collaborative Innovation Center of Quantum Matter, Beijing 100190, China;
    4 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 收稿日期:2017-04-07 修回日期:2017-04-18 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Liwei Guo, Jianing Chen E-mail:lwguo@iphy.ac.cn;jnchen@iphy.ac.cn
  • 基金资助:

    Project supported by the National Key Research and Development Program of China (Grant No.2016YFA0203500),the National Natural Science Foundation of China (Grant Nos.11474350 and 51472265),and State Key Laboratory of Optoelectronic Materials and Technologies (Sun Yat-Sen University),China.

Asymmetrical plasmon reflections in tapered graphene ribbons with wrinkle edges

Cui Yang(杨翠)1,2, Runkun Chen(陈闰堃)1,2, Yuping Jia(贾玉萍)1,2,4, Liwei Guo(郭丽伟)1,2, Jianing Chen(陈佳宁)1,2,3   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Collaborative Innovation Center of Quantum Matter, Beijing 100190, China;
    4 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • Received:2017-04-07 Revised:2017-04-18 Online:2017-07-05 Published:2017-07-05
  • Contact: Liwei Guo, Jianing Chen E-mail:lwguo@iphy.ac.cn;jnchen@iphy.ac.cn
  • Supported by:

    Project supported by the National Key Research and Development Program of China (Grant No.2016YFA0203500),the National Natural Science Foundation of China (Grant Nos.11474350 and 51472265),and State Key Laboratory of Optoelectronic Materials and Technologies (Sun Yat-Sen University),China.

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摘要：

Asymmetrical graphene plasmon reflection patterns are found in infrared near-field images of tapered graphene ribbons epitaxially grown on silicon carbon substrates. Comparing experimental data with numerical simulations, the asymmetry of these patterns is attributed to reflection of plasmons by wrinkled edges naturally grown in the graphene. These graphene wrinkles are additional plasmon reflectors with varying optical conductivity, which act as nanometer scale plasmonic modulators and thus have potential applications in photoelectric information detectors, transmitters, and modulators.

关键词: plasmon, graphene, wrinkle, optical conductivity

Abstract:

Asymmetrical graphene plasmon reflection patterns are found in infrared near-field images of tapered graphene ribbons epitaxially grown on silicon carbon substrates. Comparing experimental data with numerical simulations, the asymmetry of these patterns is attributed to reflection of plasmons by wrinkled edges naturally grown in the graphene. These graphene wrinkles are additional plasmon reflectors with varying optical conductivity, which act as nanometer scale plasmonic modulators and thus have potential applications in photoelectric information detectors, transmitters, and modulators.

Key words: plasmon, graphene, wrinkle, optical conductivity

中图分类号:  (Imaging detectors and sensors)

  • 42.79.Pw
42.25.Gy (Edge and boundary effects; reflection and refraction) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)) 73.25.+i (Surface conductivity and carrier phenomena)