dorsal/arxiv
View SchemaExcitation Theory for Space-Dispersive Active Media Waveguides
| Authors | A. A. Barybin |
|---|---|
| Categories | |
| ArXiv ID | physics/9908057 |
| URL | https://arxiv.org/abs/physics/9908057 |
| DOI | 10.1088/0022-3727/32/16/310 |
| Journal | J. Phys. D: Appl. Phys. 32 (1999) 2014-2028 |
Abstract
A unified electrodynamic approach to the guided-wave excitation theory is generalized to the waveguiding structures containing a hypothetical space-dispersive medium with drifting charge carriers possessing simultaneously elastic, piezoelectric and magnetic properties. Substantial features of our electrodynamic approach are: (i) the allowance for medium losses and (ii) the separation of potential fields peculiar to the slow quasi-static waves. It is shown that the orthogonal complementary fields appearing inside the external source region are just associated with a contribution of the potential fields inherent in exciting sources. Taking account of medium losses converts the usual orthogonality relation into a novel form called the quasi-orthogonality relation. It is found that the separation of potential fields reveals the fine structure of interaction between the exciting sources and mode eigenfields: in addition to the exciting currents interacting with the curl fields, the exciting charges and the double charge (surface dipole) layers appear to interact with the quasi-static potentials and the displacement currents, respectively.
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"abstract": "A unified electrodynamic approach to the guided-wave excitation theory is\ngeneralized to the waveguiding structures containing a hypothetical\nspace-dispersive medium with drifting charge carriers possessing simultaneously\nelastic, piezoelectric and magnetic properties. Substantial features of our\nelectrodynamic approach are: (i) the allowance for medium losses and (ii) the\nseparation of potential fields peculiar to the slow quasi-static waves. It is\nshown that the orthogonal complementary fields appearing inside the external\nsource region are just associated with a contribution of the potential fields\ninherent in exciting sources. Taking account of medium losses converts the\nusual orthogonality relation into a novel form called the quasi-orthogonality\nrelation. It is found that the separation of potential fields reveals the fine\nstructure of interaction between the exciting sources and mode eigenfields: in\naddition to the exciting currents interacting with the curl fields, the\nexciting charges and the double charge (surface dipole) layers appear to\ninteract with the quasi-static potentials and the displacement currents,\nrespectively.",
"arxiv_id": "physics/9908057",
"authors": [
"A. A. Barybin"
],
"categories": [
"physics.class-ph"
],
"doi": "10.1088/0022-3727/32/16/310",
"journal_ref": "J. Phys. D: Appl. Phys. 32 (1999) 2014-2028",
"title": "Excitation Theory for Space-Dispersive Active Media Waveguides",
"url": "https://arxiv.org/abs/physics/9908057"
},
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