Ms. Youssef Trabelsi Profile

Youssef Trabelsi

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Proceedings Article | 30 April 2012 Paper

Microwave properties of nonlinear one-dimensional quasiperiodic photonic crystals

Y. Trabelsi, M. Kanzari

Proceedings Volume 8425, 84251G (2012) https://doi.org/10.1117/12.921371

KEYWORDS: Photonic crystals, Microwave radiation, Refractive index, Dielectrics, Multilayers, Wave propagation, Radio propagation, Polarization, Reflectors, Electromagnetism

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The nonlinear properties of quasi-periodic photonic crystals based on the Thue-Morse and Fibonacci sequence are investigated. We address the transmission properties of waves through one dimensional symmetric Fibonacci, and Thue-Morse system i.e., a quasiperiodic structure made up of two different dielectric materials (Rogers and air), in quarter wavelength condition, presenting in the one directions. The microwave spectra are calculated by using transfer matrix method in normal incidence geometry. In our results we present the self-similar features of the spectra and we also present the microwave properties through a return map of the transmission coefficients. We extract powerfully the band gaps of quasi-periodic multilayered structures, called `pseudo band gaps' often contain resonant states, which can be considered as a manifestation of numerous defects distributed along the structure. Taken together, the above two properties provide favorable conditions for the design of an all-microwave reflector.

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