Photoluminescence Enhancement Dependent on the Orientations of Single NV Centers in Nanodiamonds on a Gold Film

Author

Gengxu Chen ; Yan Liu ; Min Song ; Botao Wu ; Wu, E. ; Heping Zeng

Author_Institution

State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China

Volume

19

Issue

3

fYear

2013

fDate

May-June 2013

Firstpage

4602404

Lastpage

4602404

Abstract

We studied the orientations of single Nitrogen-Vacancy (NV) color centers in nanodiamonds on a gold film by defocused imaging with a scanning confocal microscopy system and an electron-multiplying charge-coupled device. It was demonstrated that the perpendicular oriented dipole of single NV color center showed shorter fluorescence lifetime and higher fluorescence intensity than any other oriented ones on account of higher coupling efficiency of local electronic field induced by the surface plasmon resonance on the gold film for a vertical transition dipole.

Keywords

gold; nanophotonics; nanostructured materials; photoluminescence; surface plasmon resonance; electron-multiplying charge-coupled device; electronic field; gold film; nanodiamonds; photoluminescence enhancement; scanning confocal microscopy system; shorter fluorescence lifetime; single nitrogen-vacancy color centers; surface plasmon resonance; vertical transition dipole; Films; Fluorescence; Gold; Image color analysis; Photoluminescence; Photonics; Plasmons; Diamond; gold; image orientation analysis; photoluminescence; plasmons;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2013.2247977

Filename

6466354