Modeling and measurement of the electromagnetic responses of stacked volumetric gratings

Helene Roussel; Valerie Vigneras-Lefebvre; Jean-Paul Parneix; Walid Tabbara

doi:10.1117/12.390583

30 June 2000 Modeling and measurement of the electromagnetic responses of stacked volumetric gratings

Helene Roussel, Valerie Vigneras-Lefebvre, Jean-Paul Parneix, Walid Tabbara

Proceedings Volume 4097, Complex Mediums; (2000) https://doi.org/10.1117/12.390583
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The last few years have seen a growing interest in the analysis of heterogeneous materials. These investigations lead to many applications as for example the development of absorbing materials or frequency selective surfaces. To analyse these structures we developed a method based on the domain integral representation of the fields. In a way to minimize the domain of integration, we considered the case of stacked gratings embedded or not in a slab. Then by using the Floquet's theorem, the domain of integration is limited to the reference element of each grating. An interesting application of such gratings is photonic band-gap materials. Indeed, these structures present a high reflection coefficient over a broad frequency bandwidth. Various photonic band-gap materials have been realized with metallic and dielectric gratings. Bistatic free-space measurements, performed from a 4 Ghz to 18 Ghz are compared to the simulations. The results obtained show a good agreement between the reflected field obtained with the model and the measurements. Since the localization of the frequency bandwidth is well evaluated we can use this model to build reflectors to antennas for example. An other important application of such structures is absorbing materials. This aspect will be presented as well.

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Helene Roussel, Valerie Vigneras-Lefebvre, Jean-Paul Parneix, and Walid Tabbara "Modeling and measurement of the electromagnetic responses of stacked volumetric gratings", Proc. SPIE 4097, Complex Mediums, (30 June 2000); https://doi.org/10.1117/12.390583

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KEYWORDS

Dielectrics

Dielectric polarization

Electromagnetism

Transmittance

Reflectivity

Magnetism

Photon polarization

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