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Poisson distributions in disordered metamaterials absorbers.
- Source :
- Journal of Applied Physics; 6/7/2019, Vol. 125 Issue 21, pN.PAG-N.PAG, 9p, 1 Diagram, 4 Graphs
- Publication Year :
- 2019
-
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<superscript>−2</superscript> 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]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 125
- Issue :
- 21
- Database :
- Complementary Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 136881048
- Full Text :
- https://doi.org/10.1063/1.5082619