Title :
Photothermal heterodyne imaging and spectroscopy of individual metal nanoparticles
Author :
Berciaud, S. ; Cognet, L. ; Blab, G.A. ; Lounis, B.
Author_Institution :
Centre de Phys. Moleculaire Optique et Hertzienne, Bordeaux I Univ., Talence, France
Abstract :
We introduce a highly sensitive far-field optical method for imaging individual non-fluorescent nano-objects. This allows for the unprecedented detection of individual gold clusters of only 67 atoms. The spectroscopy of individual nanoclusters is demonstrated.
Keywords :
atomic clusters; gold; heterodyne detection; nanoparticles; photothermal effects; Au; far-field optical method; gold cluster; metal nanoparticle; nanocluster; nonfluorescent nanoobject; photothermal heterodyne imaging; photothermal spectroscopy; Absorption; Fluorescence; Frequency; Gold; Nanoparticles; Optical mixing; Optical refraction; Optical sensors; Probes; Spectroscopy;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1548692
