Photothermal heterodyne imaging of individual non-fluorescent nano-objects

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dc.creatorBerciaud, Stephane
dc.creatorCognet, Laurent
dc.creatorBlab, Gerhard
dc.creatorLounis, Brahim
dc.date2004-08-26
dc.date.accessioned2026-07-07T02:59:57Z
dc.date.available2026-07-07T02:59:57Z
dc.descriptionWe introduce a new, highly sensitive, and simple heterodyne optical method for imaging individual non-fluorescent nano-objects. A two orders of magnitude improvement of the signal is achieved compared to previous methods. This allows for the unprecedented detection of individual small absorptive objects such as metallic clusters (of 67 atoms) or non-luminescent semiconductor nanocrystals. The measured signals are in agreement with a calculation based on the scattering field theory from a photothermal-induced modulated index of refraction profile around the nanoparticle.
dc.descriptionSubmitted 25Mar04 to PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0408577
dc.identifierhttp://arxiv.org/abs/cond-mat/0408577
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24715
dc.subjectOther Condensed Matter
dc.subjectOptics
dc.titlePhotothermal heterodyne imaging of individual non-fluorescent nano-objects
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