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SNOM signal near plasmonic nanostructures: an analogy with fluorescence decays channels
Author(s) -
FRANCS G. COLAS DES,
GIRARD C.,
BRUYANT A.,
DEREUX A.
Publication year - 2008
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2008.01904.x
Subject(s) - near field scanning optical microscope , plasmon , near and far field , nanostructure , signal (programming language) , common emitter , optics , optical microscope , materials science , optoelectronics , physics , nanotechnology , scanning electron microscope , computer science , programming language
Summary Scanning Near‐field Optical Microscope (SNOM) is based on local excitations of nanostructures deposited on a substrate (illumination mode). Ideally, the local source behaves like a dipolar emitter so that the SNOM signal is strongly similar to the fluorescence decay rates of an excited molecule that would be located at the SNOM tip position. We present here how the SNOM signal near plasmonic nanostructures can be used to analyze radiative and non‐radiative contribution to the fluorescence decay rate.