Title :
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
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;
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
DOI :
10.1109/CLEOE-EQEC.2009.5194766
