### Abstract

A grounded dielectric film-slab is externally excited by a normally-incident Gaussian beam. A single superstrate dielectric layer, with suitably selected parameters, is placed on top of the film-slab in order to increase the power concentration inside the slab. A basic quantity of interest, called "enhancement factor" is defined, which expresses how high is the power concentration in the slab when the superstrate is present, compared to when it is absent. We demonstrate that high enhancement factor values may be achieved by choosing appropriately the physical and geometrical superstrate's parameters.

Original language | English |
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Title of host publication | Proceedings of the 14th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2012 |

Pages | 304-307 |

Number of pages | 4 |

DOIs | |

Publication status | Published - Dec 14 2012 |

Event | 14th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2012 - Kharkiv, Ukraine Duration: Aug 28 2012 → Aug 30 2012 |

### Publication series

Name | International Conference on Mathematical Methods in Electromagnetic Theory, MMET |
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ISSN (Print) | 2161-1734 |

ISSN (Electronic) | 2161-1750 |

### Other

Other | 14th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2012 |
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Country | Ukraine |

City | Kharkiv |

Period | 8/28/12 → 8/30/12 |

### ASJC Scopus subject areas

- Applied Mathematics
- Mathematical Physics
- Modelling and Simulation
- Condensed Matter Physics

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## Cite this

Tsitsas, N. L., & Valagiannopoulos, C. A. (2012). Concentrating the electromagnetic power in a grounded dielectric slab excited by an external Gaussian beam. In

*Proceedings of the 14th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2012*(pp. 304-307). [6331251] (International Conference on Mathematical Methods in Electromagnetic Theory, MMET). https://doi.org/10.1109/MMET.2012.6331251