https://doi.org/10.1051/epjap/2009023
Full field imaging of isolated metallic nano objects
1
École Supérieure de Physique et Chimie Industrielles de la Ville de Paris, CNRS UPR 5, Université Pierre et Marie Curie Paris 6, 10 rue Vauquelin, 75231 Paris Cedex 05, France
2
École Normale Supérieure, CNRS UMR 8552, Université Pierre et Marie Curie Paris 6, 24 rue Lhomond, 75231 Paris Cedex 05, France
Corresponding author: gilles.tessier@espci.fr
Received:
30
May
2008
Revised:
5
January
2009
Accepted:
7
January
2009
Published online:
30
May
2009
Since the detection of nanoparticles is a major issue in nano sciences, we have developed two instruments for the fast imaging of individual nano objects. The first one is based on a spatial modulation of the sample using an incoherent dark field illumination and a multiplexed lock in detection. The second instrument uses digital heterodyne holography. Both instruments make it possible to achieve a high signal-to-noise ratio and therefore to detect very low signal.
PACS: 78.67.Bf – Nanocrystals and nanoparticles / 78.90.+t – Other topics in optical properties, condensed matter spectroscopy and other interactions of particles and radiation with condensed matter
© EDP Sciences, 2009
