| Issue |
Ann. Phys. Fr.
Volume 32, Number 2-3, 2007
COLOQ'1010th conference on lasers and quantum optics
|
|
|---|---|---|
| Page(s) | 143 - 145 | |
| Section | Short contributions | |
| DOI | https://doi.org/10.1051/anphys:2008028 | |
| Published online | 23 May 2008 | |
Ann. Phys. Fr., Vol. 32, N°2-3 2007, pp. 143-145
Dye-substrate interactions evidenced by fluorescence correlation spectroscopy
Laboratoire de Nanotechnologie et d'Instrumentation Optique, Institut Charles Delaunay CNRS FRE 2848, Université de Technologie de Troyes, 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex, France
Corresponding author: rodolphe.jaffiol@utt.fr
In this report, we discuss how the nature of the substrate-water interaction may modify the free diffusion of single molecules, then influencing fluorescence correlation spectroscopy measurements. Our results show a strong influence, up to a few micrometers from the interface, of the surface polarity. This effect is assessed through the relative weight of the two dimension diffusion process observed close to the surface.
© EDP Sciences, 2008