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- W1994839684 abstract "This paper presents and analyzes configurations of waveguides composed by both, regular dielectrics and negative-index materials disposed in an anti-symmetric way with respect to the optical axis. In its basic form, the configuration includes two guiding layers and two cladding media, where both the cladding and the guiding pairs have opposite-signed refractive index. A geometrical analysis shows that paths are closed, hinting the possibility of localized modes or light trapping with zero ray velocity. The ray model shows also a quasi-perfect imaging effect for off-axis objects. A modal approach shows that trapping is broadband and the propagation constant spectrum is continuous. When cores are allowed different widths, control of the group velocity is possible. More general anti-symmetrically mirrored layouts are also addressed." @default.
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- W1994839684 date "2010-09-15" @default.
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- W1994839684 title "Guiding effects in waveguides with anti-symmetric refractive index layouts" @default.
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- W1994839684 doi "https://doi.org/10.1364/oe.18.020681" @default.
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