Ref HAL: hal-00653907_v1
PMID 22274193
Ref Arxiv: 1112.4737
DOI: 10.1364/OE.19.026044
WoS: 000301151500023
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
70 Citations
Résumé:

We present a new technique that combines off-axis Digital Holography and Dark Field Microscopy to track 100nm gold particles diffusing in water. We show that a single hologram is sufficient to localize several particles in a thick sample with a localization accuracy independent of the particle position. From our measurements we reconstruct the trajectories of the particles and derive their 3D diffusion coefficient. Our results pave the way for quantitative studies of the motion of single nanoparticle in complex media.