Modification of single CdSe-CdS nanocrystals fluorescence through their coupling to a gold semicontinuous film

Author

Zouari, I. Mallek ; Buil, S. ; Quelin, X. ; Mahler, B. ; Dubertret, B. ; Hermier, J.-P.

Author_Institution

Groupe d´´Etude de la Mater. Condensee, Univ. de Versailles-St.-Quentin-en-Yvelines, Versailles, France

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

This paper describes the modification of individual CdSe-CdS nanocrystals emission deposited at a controlled distance d from a gold semicontinous film. These colloidal quantum dots exhibit many promising optical properties and can be easily manipulated. Emission wavelength can be tuned between 450 and 600 nm through the control of the nanocrystals synthesis parameters. Finally, the results reveal great interest for quantum optics experiments. Single photon collection is made possible through an increased pulsed laser repetition rate, due to the reduction of the radiative lifetime.

Keywords

II-VI semiconductors; cadmium compounds; colloids; fluorescence; gold; metallic thin films; nanostructured materials; optical tuning; quantum optics; radiative lifetimes; semiconductor quantum dots; wide band gap semiconductors; Au; CdSe-CdS; CdSe-CdS nanocrystals; colloidal quantum dots; emission wavelength tuning; fluorescence; gold semicontinuous film; nanocrystal synthesis parameters; optical properties; quantum optics; radiative lifetime; single photon collection; wavelength 450 nm to 600 nm; Biomedical optical imaging; Dielectrics; Fluorescence; Gold; Nanocrystals; Nanostructures; Optical films; Plasmons; Resonance; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5194766

Filename

5194766