Many-body subradiant excitations in metamaterial arrays:experiment and theory

Jenkins, Stewart and Ruostekoski, Janne and Papasimakis, Nikitas and Savo, Salvatore and Zheludev, Nikolai (2017) Many-body subradiant excitations in metamaterial arrays:experiment and theory. Physical review letters, 119 (5-4). ISSN 1079-7114

[img]
Preview
PDF (subradiance_revised_v4)
subradiance_revised_v4.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial.

Download (3MB)

Abstract

Subradiant excitations, originally predicted by Dicke, have posed a long-standing challenge in physics owing to their weak radiative coupling to environment. Here we engineer massive coherently driven classical subradiance in planar metamaterial arrays as a spatially extended eigenmode comprising over 1000 metamolecules. By comparing the near- and far-field response in large-scale numerical simulations with those in experimental observations we identify strong evidence for classically correlated multimetamolecule subradiant states that dominate the total excitation energy. We show that similar spatially extended many-body subradiance can also exist in plasmonic meta-material arrays at optical frequencies.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2017 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123636
Deposited By:
Deposited On:
26 Feb 2018 16:22
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Nov 2020 05:05