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Defect modes and transmission properties of left-handed bandgap structures | | Ilya V Shadrivov
; Nina A Zharova
; Alexander A Zharov
; Yuri S Kivshar
; | | Date: |
30 Sep 2004 | | Journal: | Phys Rev E, 70 (4 Pt 2), 046615 | | Abstract: | We analyze transmission of electromagnetic waves through a one-dimensional periodic layered structure consisting of slabs of a left-handed metamaterial and air. We derive the effective parameters of the metamaterial from a microscopic structure of wires and split-ring resonators possessing the left-handed characteristics in the microwave frequency range, and then study, by means of the transfer-matrix approach and the finite-difference time-domain numerical simulations, the transmission properties of this layered structure in a band gap associated with the zero averaged refractive index. By introducing defects, the transmission of such a structure can be made tunable, and we study the similarities and differences of the defects modes excited in two types of the band gaps. | | Source: | PubMed, pmid15600555 | | Services: | Forum | Review | Favorites | |
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