Orientational imaging and tracking of single colloidal CdSe quantum dots by defocused microscopy

Author

Brokmann, X. ; Ehrensperger, M.V. ; Hermier, J.-P. ; Dahan, M. ; Triller, A.

Author_Institution

Lab. Kastler Brossel, Univ. Pierre et Marie Curie, Paris

fYear

2005

fDate

17-17 June 2005

Firstpage

623

Lastpage

623

Abstract

We have demonstrated the possibility to obtain the orientation of single CdSe quantum dots by optical defocused microscopy. At the single molecule level, it is a useful tool to analyse the modification of the spontaneous emission of a single emitter close to an interface, it could also be used to study processes such as energy transfer between a quantum dot and a fluorophore. In the field of biological detection, this technique could he employed to investigate the rotary motion of molecular motors

Keywords

II-VI semiconductors; biological techniques; cadmium compounds; fluorescence; molecular biophysics; optical microscopy; semiconductor quantum dots; CdSe; biological detection; energy transfer; fluorophore; molecular motor; optical defocused microscopy; orientational imaging; single colloidal CdSe quantum dots; single emitter; spontaneous emission; Biomedical optical imaging; Light sources; Molecular biophysics; Nanobioscience; Nanocrystals; Optical microscopy; Quantum dots; Spontaneous emission; Stimulated emission; US Department of Transportation;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on

Conference_Location

Munich

Print_ISBN

0-7803-8974-3

Type

conf

DOI

10.1109/CLEOE.2005.1568399

Filename

1568399