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Proceedings Paper

Second harmonic generation at liquid interface: molecular organization, supramolecular assemblies, and chirality
Author(s): Emmanuel Benichou; Pierre-Marie Gassin; Gaëlle Gassin-Martin; Aurélie Bruyère; Isabelle Russier-Antoine; Christian Jonin; Olivier Diat; Pierre-François Brevet
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Paper Abstract

Second Harmonic Generation (SHG) was used to study the optical properties of molecular films formed at liquid interfaces (air-water or dodecane-water interfaces). The technique was applied to a two-dimensional film of hemicyanine molecules: dye (4-(4-dihexadecylaminostyryl)-N-methylpyridinium iodide) (DiA) and 4-(4-(diethylamino)styryl)-Nmethylpyridinium iodide (sDiA). First, at the air-water interface, the SHG intensity was measured as a function of the incident fundamental and outgoing harmonic wave polarization. The orientation of the molecules was determined by the analysis of the polarization plots. Secondly, the adsorption of sDiA at the dodecane-water interface was characterized by the SHG technique. Finally, in the case of DiA molecules, the formation of aggregates at the air-water interface was monitored by the analysis of SHG intensity fluctuations.

Paper Details

Date Published: 7 March 2014
PDF: 7 pages
Proc. SPIE 8983, Organic Photonic Materials and Devices XVI, 898307 (7 March 2014); doi: 10.1117/12.2038061
Show Author Affiliations
Emmanuel Benichou, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)
Pierre-Marie Gassin, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)
Institut de Chimie Séparative de Marcoule, CEA-CNRS-UM2-ENSCM (France)
Gaëlle Gassin-Martin, Institut Charles Gerhardt Montpellier, CNRS-UM2-ENSCM-UM1 (France)
Aurélie Bruyère, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)
Isabelle Russier-Antoine, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)
Christian Jonin, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)
Olivier Diat, Institut de Chimie Séparative de Marcoule, CEA-CNRS-UM2-ENSCM (France)
Pierre-François Brevet, Institute Lumière Matière, CNRS, Univ. Claude Bernard Lyon 1, Univ. Lyon (France)


Published in SPIE Proceedings Vol. 8983:
Organic Photonic Materials and Devices XVI
Christopher E. Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

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