On the Fermat's principle in a semi-transparent sphere of uniaxial cristal
| Autor: | Hamou Sadat, V. Le Dez |
|---|---|
| Přispěvatelé: | Laboratoire d'études thermiques (LET), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Mécanique et d'Aérotechnique [Poitiers] (ISAE-ENSMA)-Université de Poitiers, Langrené, Elsa |
| Rok vydání: | 2007 |
| Předmět: |
Physics
Permittivity 010504 meteorology & atmospheric sciences Geometrical optics Uniaxial crystal Condensed matter physics Isotropy Physics::Optics Condensed Matter Physics 01 natural sciences Fermat's principle Electronic Optical and Magnetic Materials Optical axis symbols.namesake Classical mechanics 0103 physical sciences symbols Perpendicular 010306 general physics Anisotropy Instrumentation ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences |
| Zdroj: | European Physical Journal: Applied Physics European Physical Journal: Applied Physics, EDP Sciences, 2007, pp.181-190 |
| ISSN: | 1286-0050 1286-0042 |
| DOI: | 10.1051/epjap:2007021 |
| Popis: | The determination of the optical trajectories on which the radiative energy is transported has been achieved by solving the anisotropic Fermat's principle in a sphere of uniaxial semi-transparent material when the dielectric perpendicular and parallel permittivities are space dependant; first established for the general case of an optical axis function of the location inside the medium, it has completely been solved for the particular case of a constant optical axis with a constant anisotropy factor when the perpendicular permittivity is a function of the radius; the calculation shows a lack of the spherical symmetry due to the presence of the optical axis which induces non planar trajectories contrarily to the isotropic case. |
| Databáze: | OpenAIRE |
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