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Ultimate Limit of Light Extinction by Nanophotonic Structures

Zhong-Jian Yang (Institutionen för teknisk fysik, Bionanofotonik) ; Tomasz Antosiewicz (Institutionen för teknisk fysik, Bionanofotonik) ; Ruggero Verre (Institutionen för teknisk fysik, Bionanofotonik) ; F. J. G. de Abajo ; S. Peter Apell (Institutionen för teknisk fysik) ; Mikael Käll (Institutionen för teknisk fysik, Bionanofotonik)
Nano letters (1530-6984). Vol. 15 (2015), 11, p. 7633-7638.
[Artikel, refereegranskad vetenskaplig]

Nanophotonic structures make it possible to precisely engineer the optical response at deep subwavelength scales. However, a fundamental understanding of the general performance limits remains a challenge. Here we use extensive electrodynamics simulations to demonstrate that the so-called f-sum rule sets a strict upper bound to the light extinction by nanostructures regardless their internal interactions and retardation effects. In particular, we show that the f-sum rule applies to arbitrarily complex plasmonic metal structures that exhibit an extraordinary spectral sensitivity to size, shape, near-field coupling effects, and incident polarization. The results may be used for benchmarking light scattering and absorption efficiencies, thus imposing fundamental limits on solar light harvesting, biomedical photonics, and optical communications.

Nyckelord: Nanophotonics, plasmonics, extinction, f-sum rule



Denna post skapades 2016-01-07.
CPL Pubid: 230025

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Bionanofotonik (2007-2015)
Institutionen för teknisk fysik (1900-2015)

Ämnesområden

Fysik

Chalmers infrastruktur