Fundamental Limits to Extinction by Metallic Nanoparticles
Author(s)Qiu, W.; DeLacy, Brendan G.; Miller, Owen D.; Hsu, Chia Wei; Reid, M. T. Homer; Joannopoulos, John D.; Soljacic, Marin; Johnson, Steven G.; ... Show more Show less
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We show that there are shape-independent upper bounds to the extinction cross section per unit volume of dilute, randomly arranged nanoparticles, given only material permittivity. Underlying the limits are restrictive sum rules that constrain the distribution of quasistatic eigenvalues. Surprisingly, optimally designed spheroids, with only a single quasistatic degree of freedom, reach the upper bounds for four permittivity values. Away from these permittivities, we demonstrate computationally optimized structures that surpass spheroids and approach the fundamental limits.
DepartmentMassachusetts Institute of Technology. Institute for Soldier Nanotechnologies; Massachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Department of Physics
Physical Review Letters
American Physical Society
Miller, O. D., C. W. Hsu, M. T. H. Reid, W. Qiu, B. G. DeLacy, J. D. Joannopoulos, M. Soljacic, and S. G. Johnson. “Fundamental Limits to Extinction by Metallic Nanoparticles.” Physical Review Letters 112, no. 12 (March 2014).
Final published version