摘要
The transmission property of microwave through a kind of metamaterial is investigated experimentally.Such metamaterials are fabricated with a structure of double sets of square holes:subwavelength ones,and small ones whose sizes and spacing are smaller at least one order of magnitude than those of the subwavelength holes.The experimental results show that the peak power of the measured transmission spectra is dependent on the structure parameters of the small holes.The physical origin to create this phenomenon is that the designer surface plasmons sustained by the small holes affect on the transmission property of the microwave passing through the subwavelength holes.The results are promising for proposing some techniques for optoelectronic devices in terahertz and microwave regime.
The transmission property of microwave through a kind of metamaterial is investigated experimentally. Such metamaterials are fabricated with a structure of double sets of square holes： subwavelength ones, and small ones whose sizes and spacing are small- er at least one order of magnitude than those of the suhwavelength holes. The experimental results show that the peak power of the measured transmission spectra is dependent on the structure parameters of the small holes. The physical origin to create this phenomenon is that the designer surface plasmons sustained by the small holes affect on the transmission property of the micro- wave passing through the subwavelength holes. The results are promising for proposing some techniques for optoelectronic de- vices in terahertz and microwave regime.
基金
supported by the National Natural Science Foundation of China (10974063 and 61177095)
Hubei Natural Science Foundation(2010CDA001)
Ph.D. Programs Foundation of Ministry of Education of China (20100142110042)
the Fundamental Research Funds for the Central Universities (HUST:2010MS041 and 2011TS001)
关键词
传输特性
微波
方孔
材料
表面等离激元
结构参数
光电子器件
峰值功率
surface plasmons, surface waves, far infrared or terahertz, electromagnetic theory, guided waves, transmission
