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 between monocrystalline structures and nanoscale polycrystalline aggregates responsible for incoherent second harmonic signals.
Brasselet
Sophie
S
Laboratoire de Photonique Quantique et Moléculaire (CNRS UMR 8537), Ecole Normale Supérieure de Cachan, 61 Avenue du Président Wilson, 94235 Cachan CEDEX, France.
Le Floc'h
Véronique
V
Treussart
François
F
Roch
Jean-François
JF
Zyss
Joseph
J
Botzung-Appert
Estelle
E
Ibanez
Alain
A
D000097:Acetonitriles / Q000737:chemistry; D001555:Benzene Derivatives / Q000737:chemistry*; D003460:Crystallization; D006838:Hydrocarbons; D049449:Luminescence; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry*; D008853:Microscopy / Q000379:methods; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D012666:Semiconductors
D000097:Acetonitriles; D001555:Benzene Derivatives; D006838:Hydrocarbons; C030011:carbene; D008697:Methane; C032159:acetonitrile