1. Poisson distributions in disordered metamaterials absorbers.
- Author
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Fernez, N., Burgnies, L., Dereudre, D., Lippens, D., and Lheurette, É.
- Subjects
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POISSON distribution , *ABSORPTION , *METAMATERIALS , *PARTICLE density (Nuclear chemistry) , *RESONATORS , *MONOMERS , *DIMERS - Abstract
The absorption mechanisms of Poisson-distributed disordered Metal-Insulator-Metal structures are investigated theoretically and numerically. In particular, from the Poisson point process, Slivnyak–Mecke integrals are used to predict the number of isolated particles and majority clusters as a function of the particle density z. Then, the impact of these numbers on peak, mean, and bandwidth absorbance is calculated by full-wave electromagnetic analysis. It is shown that the peak absorbance reaches a maximum value of higher than 0.9 for a particle density of 0.6 cm−2 originating from main contributions of monomers and dimers whereas trimers represent less than 6% of the total number of particles. The conclusions of these studies are experimentally confirmed by means of free-space characterization. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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