Fano-induced spontaneous emission enhancement of molecule placed in a cluster of asymmetrically-arranged metallic nanoparticles

Authors

Khai Q. Le, Hoa Sen University
Jing Bai, University of Minnesota Duluth
H. P.T. Nguyen, Newark College of Engineering

Document Type

Article

Publication Date

5-1-2016

Abstract

We demonstrate that plasmonic Fano resonance significantly boosts spontaneous emission rate of a single emitter, e.g. atom, molecule and quantum dot, over a moderately broad emission spectrum. An emission enhancement of up to 140 times compared to the system with no external inclusion at tunable frequencies is achieved, providing a new complementary enhancement mechanism. Fano resonance is induced in clusters of four asymmetric-arranged nanoparticles with ultra-small inter-particle gaps. It is shown to play a dominant role in light-emitting enhancement, mediated by combined localized surface plasmon resonances.

Identifier

84957001697 (Scopus)

Publication Title

Journal of Luminescence

External Full Text Location

https://doi.org/10.1016/j.jlumin.2016.01.021

ISSN

00222313

First Page

199

Last Page

202

Volume

173

Recommended Citation

Le, Khai Q.; Bai, Jing; and Nguyen, H. P.T., "Fano-induced spontaneous emission enhancement of molecule placed in a cluster of asymmetrically-arranged metallic nanoparticles" (2016). Faculty Publications. 10550.
https://digitalcommons.njit.edu/fac_pubs/10550