Omnidirectional reflection and flat-top transmissionin Thue-Morse quasicrystal with single-negative materials |
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Authors: | C P Yin T-B Wang J-W Dong Y H Chen and H Z Wang |
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Institution: | (1) State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan(Sun Yat-Sen) University, Guangzhou, 510275, P.R. China;(2) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006, P.R. China |
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Abstract: | By means of transfer matrix method, we investigate the transmittance and
reflectance of Thue-Morse (T-M) structure composed of negative-permittivity
and negative-permeability materials. It is shown that the width and location
of an omnidirectional reflectance band remain invariant with the change of
generation order, and that the omnidirectional reflectance band is
determined by both TE and TM polarization, which different completely from
that in dielectric T-M structure. Moreover, a flat-top total transmission
band occurs around the same frequency in which the general zero average
permittivity and permeability are both satisfied in T-M structure. The basis
for these phenomena are presented and discussed. |
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Keywords: | PACS" target="_blank">PACS 42 70 Qs Photonic bandgap materials 41 20 Jb Electromagnetic wave propagation radiowave propagation 71 23 Ft Quasicrystals |
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