Trade-offs in absorption and scattering by nanophotonic structures
| Autor: | Schab, Kurt, Rothschild, Austin, Nguyen, Kristi, Capek, Miloslav, Jelinek, Lukas, Gustafsson, Mats |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OE.410520 |
| Popis: | Trade-offs between feasible absorption and scattering cross sections of obstacles confined to an arbitrarily shaped volume are formulated as a multi-objective optimization problem solvable by Lagrangian-dual methods. Solutions to this optimization problem yield a Pareto-optimal set, the shape of which reveals the feasibility of achieving simultaneously extremal absorption and scattering. Two forms of the trade-off problems are considered involving both loss and reactive material parameters. Numerical comparisons between the derived multi-objective bounds and several classes of realized structures are made. Additionally, low-frequency (electrically small, long wavelength) limits are examined for certain special cases. Comment: 16 pages, 9 figures |
| Databáze: | arXiv |
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