Format

Send to

Choose Destination
Phys Rev Lett. 2014 Mar 28;112(12):123903. Epub 2014 Mar 26.

Fundamental limits to extinction by metallic nanoparticles.

Author information

1
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
2
Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
3
Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
4
U.S. Army Edgewood Chemical Biological Center, Research and Technology Directorate, Aberdeen Proving Ground, Maryland 21010, USA.

Abstract

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.

PMID:
24724651
DOI:
10.1103/PhysRevLett.112.123903
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center