中国物理B ›› 2014, Vol. 23 ›› Issue (2): 24101-024101.doi: 10.1088/1674-1056/23/2/024101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Role of shape of hole in transmission and negative refractive index of sandwiched metamaterials

钟敏a b, 叶永红a   

  1. a Department of Physics, Nanjing Normal University, Nanjing 210023, China;
    b Hezhou College, Hezhou 542899, China
  • 收稿日期:2013-03-12 修回日期:2013-04-16 出版日期:2013-12-12 发布日期:2013-12-12
  • 基金资助:
    Project supported partially by the National Natural Science Foundation of China (Grant No. 60778041) and the Natural Science Foundation of the Jiangsu Higher Education Institutions, China (Grant No. 07KJA51001).

Role of shape of hole in transmission and negative refractive index of sandwiched metamaterials

Zhong Min (钟敏)a b, Ye Yong-Hong (叶永红)a   

  1. a Department of Physics, Nanjing Normal University, Nanjing 210023, China;
    b Hezhou College, Hezhou 542899, China
  • Received:2013-03-12 Revised:2013-04-16 Online:2013-12-12 Published:2013-12-12
  • Contact: Ye Yong-Hong E-mail:yeyonghong@njnu.edu.cn
  • About author:41.20.Jb; 78.20.Cj; 73.20.Mf; 42.25.Bs
  • Supported by:
    Project supported partially by the National Natural Science Foundation of China (Grant No. 60778041) and the Natural Science Foundation of the Jiangsu Higher Education Institutions, China (Grant No. 07KJA51001).

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摘要： Transmission and negative refractive index (NRI) of metal–dielectric–metal (MDM) sandwiched metamaterial perforated with four kinds of shapes of holes are numerically studied. Results indicate that positions of all transmission peaks of these kinds of holes are sensitive to the shape of the hole. Under the same conditions, the circular hole can obtain the maximum NRI and the rectangular hole can obtain the maximum frequency bandwidth of NRI. Moreover, the figure of merit (FOM) of the circular hole is the maximum too. As a result, we can obtain a higher NRI and FOM metamaterial by drilling circular hole arrays on MDM metamaterial.

关键词: metamaterials, negative refractive index (NRI), transmission

Abstract: Transmission and negative refractive index (NRI) of metal–dielectric–metal (MDM) sandwiched metamaterial perforated with four kinds of shapes of holes are numerically studied. Results indicate that positions of all transmission peaks of these kinds of holes are sensitive to the shape of the hole. Under the same conditions, the circular hole can obtain the maximum NRI and the rectangular hole can obtain the maximum frequency bandwidth of NRI. Moreover, the figure of merit (FOM) of the circular hole is the maximum too. As a result, we can obtain a higher NRI and FOM metamaterial by drilling circular hole arrays on MDM metamaterial.

Key words: metamaterials, negative refractive index (NRI), transmission

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)) 42.25.Bs (Wave propagation, transmission and absorption)