Theory of confined plasmonic waves in ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Theory of confined plasmonic waves in coaxial cylindrical cables fabricated of metamaterials
Auteur(s) :
Kushwaha, M.S. [Auteur]
Rice University [Houston]
Djafari-Rouhani, Bahram [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Rice University [Houston]
Djafari-Rouhani, Bahram [Auteur]
![refId](/themes/Mirage2//images/idref.png)
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Titre de la revue :
Journal of the Optical Society of America B
Pagination :
148-167
Éditeur :
Optical Society of America
Date de publication :
2010
ISSN :
0740-3224
Discipline(s) HAL :
Physique [physics]/Physique [physics]/Optique [physics.optics]
Physique [physics]/Matière Condensée [cond-mat]
Physique [physics]/Matière Condensée [cond-mat]
Résumé en anglais : [en]
We report on the theoretical investigation of the plasmonic wave propagation in the coaxial cylindrical cables fabricated of both right-handed medium (RHM) [with ǫ > 0, µ > 0] and lefthanded medium (LHM) [with ǫ(ω) < 0, ...
Lire la suite >We report on the theoretical investigation of the plasmonic wave propagation in the coaxial cylindrical cables fabricated of both right-handed medium (RHM) [with ǫ > 0, µ > 0] and lefthanded medium (LHM) [with ǫ(ω) < 0, µ(ω) < 0], using a Green-function (or response function) theory in the absence of an applied magnetic field. The Green-function theory generalized to be applicable to such quasi-one dimensional systems enables us to derive explicit expressions for the corresponding response functions (associated with the EM fields), which can in turn be used to derive various physical properties of the system. The confined plasmonic wave excitations in such multi-interface structures are characterized by the electromagnetic fields that are localized at and decay exponentially away from the interfaces. A rigorous analytical diagnosis of the general results in diverse situations leads us to reproduce exactly the previously well-known results in other geometries, obtained within the different theoretical frameworks. As an application, we present several illustrative examples on the dispersion characteristics of the confined (and extended) plasmonic waves in single- and double-interface structures made up of dispersive metamaterials interlaced with conventional dielectrics. These dispersive modes are also substantiated through the computation of local as well as total density of states. It is observed that the dispersive components enable the system to support the simultaneous existence of s- and p-polarization modes in the system. Such effects as this one are solely attributed to the negative-index metamaterials and are otherwise impossible. The readers will also notice the explicit µ-dependence of the dispersion relations for the s-polarization modes, obtained under special limits in some cases, for the singleand double-interface systems. The elegance of the theory lies in the fact that it does not require the matching of the boundary conditions and in its simplicity and the compact form of the desired (analytical) resultsLire moins >
Lire la suite >We report on the theoretical investigation of the plasmonic wave propagation in the coaxial cylindrical cables fabricated of both right-handed medium (RHM) [with ǫ > 0, µ > 0] and lefthanded medium (LHM) [with ǫ(ω) < 0, µ(ω) < 0], using a Green-function (or response function) theory in the absence of an applied magnetic field. The Green-function theory generalized to be applicable to such quasi-one dimensional systems enables us to derive explicit expressions for the corresponding response functions (associated with the EM fields), which can in turn be used to derive various physical properties of the system. The confined plasmonic wave excitations in such multi-interface structures are characterized by the electromagnetic fields that are localized at and decay exponentially away from the interfaces. A rigorous analytical diagnosis of the general results in diverse situations leads us to reproduce exactly the previously well-known results in other geometries, obtained within the different theoretical frameworks. As an application, we present several illustrative examples on the dispersion characteristics of the confined (and extended) plasmonic waves in single- and double-interface structures made up of dispersive metamaterials interlaced with conventional dielectrics. These dispersive modes are also substantiated through the computation of local as well as total density of states. It is observed that the dispersive components enable the system to support the simultaneous existence of s- and p-polarization modes in the system. Such effects as this one are solely attributed to the negative-index metamaterials and are otherwise impossible. The readers will also notice the explicit µ-dependence of the dispersion relations for the s-polarization modes, obtained under special limits in some cases, for the singleand double-interface systems. The elegance of the theory lies in the fact that it does not require the matching of the boundary conditions and in its simplicity and the compact form of the desired (analytical) resultsLire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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- 1306.3570.pdf
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- 1306.3570
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