Two Dimensional Polarization Independent All-dielectric Left-handed Metamaterial in Free Space
In this paper,we proposed a type of all-dielectric metamaterial(ADM)with quasi-continuous structure,which can inspire quasi-continuous electric and magnetic responses to acquire left-handed properties in free space.The proposed model utilizing dielectric rods and cubes as sub-wavelength inclusions.A two dimensional polarization independent left-handedness can be achieved with the frequencies at C band.The rods resonant under characteristic modes can generate negative permittivity and permeability,whereas the cubes are used in the non-resonant modes to assure the continuity of the displacement currents in dielectric inclusions.The simultaneously double negative properties can be interpreted by electric and magnetic fields distributions of the dielectric inclusions near 7.6 GHz under normal incidence with polarization angle 45°.The further study on transmission spectra and effective refractive indexes of the model with different polarization angles shows that the left-handed property is insensitive to different polarization angles due to the π/2 rotation symmetry of the ADM.The proposed ADM can be easily realized at infrared and optical frequencies with dielectric inclusions.
Jun Wang Shaobo Qu Mingde Feng Bai Du Zhuo Xu
College of Science,Air Force Engineering University,Xian,Shaanxi 710051,China Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education International C
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
703-706
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）