In-situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy
Sophie Brasselet, Veronique Le Floc'h, Francois Treussart,, Jean-Francois Roch, Joseph Zyss, Estelle Botzung-Appert, Alain Ibanez
TL;DR
This paper introduces a polarized nonlinear microscopy method combining two-photon fluorescence and second harmonic generation to determine the crystalline structure and orientation of individual organic nanocrystals within a matrix.
Contribution
It presents a novel in-situ diagnostic technique for analyzing the crystalline nature and 3D orientation of single organic nanocrystals.
Findings
Distinguishes mono-crystalline from poly-crystalline nanostructures
Enables in-situ analysis of nanocrystal orientation
Provides detailed crystalline characterization within matrices
Abstract
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 mono-crystalline structures and nano-scale poly-crystalline aggregates responsible for incoherent second harmonic signals.
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Taxonomy
TopicsNonlinear Optical Materials Research · Nonlinear Optical Materials Studies · Crystallography and molecular interactions