Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System

We investigate the quantum optical properties of strong light-matter interaction between a quantum emitter and a metallic nanoparticle beyond idealized structures with a smooth surface. Based on the local coupling strength and macroscopic Green’s function, we derived an exact quantum optics approach...

Full description

Saved in:
Bibliographic Details
Published inScientific reports Vol. 8; no. 1; pp. 7115 - 11
Main Authors Lu, Yu-Wei, Li, Ling-Yan, Liu, Jing-Feng
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 08.05.2018
Nature Publishing Group
Nature Portfolio
Subjects
639/624/400/1021
639/624/400/482
Humanities and Social Sciences
multidisciplinary
Nanoparticles
Optical properties
Optics
Science
Science (multidisciplinary)
Surface roughness
Vacuum
Online AccessGet full text

Cover

More Information
Summary:We investigate the quantum optical properties of strong light-matter interaction between a quantum emitter and a metallic nanoparticle beyond idealized structures with a smooth surface. Based on the local coupling strength and macroscopic Green’s function, we derived an exact quantum optics approach to obtain the field enhancement and light-emission spectrum of a quantum emitter. Numerical simulations show that the surface roughness has a greater effect on the near-field than on the far-field, and slightly increases the vacuum Rabi splitting on average. Further, we verified that the near-field enhancement is mainly determined by the surface features of hot-spot area.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-25584-5