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- Schab, Kurt, et al.
(författare)
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Trade-offs in absorption and scattering by nanophotonic structures
- 2020
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Ingår i: Optics Express. - 1094-4087. ; 28:24, s. 36584-36599
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Tidskriftsartikel (refereegranskat)abstract
- Trade-offs between absorption and scattering cross sections of lossy 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 pre-assigned 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.
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