Complete Light Annihilation in an Ultrathin Layer of Gold Nanoparticles
Artikel i vetenskaplig tidskrift, 2013

We experimentally demonstrate that an incident light beam can be completely annihilated in a single layer of randomly distributed, widely spaced gold nanoparticle antennas. Under certain conditions, each antenna dissipates more than 10 times the number of photons that enter its geometric cross-sectional area. The underlying physics can be understood in terms of a critical coupling to localized plasmons in the nanoparticles or, equivalently, in terms of destructive optical Fano interference and so-called coherent absorption.

localized surface plasmon

Perfect absorption

optical heating

metamaterials

optical near fields

optical absorption

Författare

Mikael Svedendahl

Chalmers, Teknisk fysik, Bionanofotonik

Peter Johansson

Chalmers, Teknisk fysik, Bionanofotonik

Mikael Käll

Chalmers, Teknisk fysik, Bionanofotonik

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 13 7 3053-3058

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Nanoteknik

DOI

10.1021/nl400849f