In situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy

We elucidate the crystalline nature and the three-dimensional orientation of isolated organic nanocrystals embedded in a sol-gel matrix, using a polarized nonlinear microscopy technique that combines two-photon fluorescence and second harmonic generation. This technique allows the distinction betwee...

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Bibliographic Details
Published inPhysical review letters Vol. 92; no. 20; p. 207401
Main Authors Brasselet, Sophie, Le Floc'h, Véronique, Treussart, François, Roch, Jean-François, Zyss, Joseph, Botzung-Appert, Estelle, Ibanez, Alain
Format Journal Article
LanguageEnglish
Published United States 21.05.2004
Subjects
Acetonitriles - chemistry
Benzene Derivatives - chemistry
Crystallization
Hydrocarbons
Luminescence
Methane - analogs & derivatives
Methane - chemistry
Microscopy - methods
Models, Chemical
Nanotechnology - methods
Semiconductors
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Summary:We elucidate the crystalline nature and the three-dimensional orientation of isolated organic nanocrystals embedded in a sol-gel matrix, using a polarized nonlinear microscopy technique that combines two-photon fluorescence and second harmonic generation. This technique allows the distinction between monocrystalline structures and nanoscale polycrystalline aggregates responsible for incoherent second harmonic signals.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.92.207401