Share Email Print
cover

Proceedings Paper

Cooperative TPA enhancement via through-space interactions in organic nanodots built from dipolar chromophores
Author(s): Anne-Claire Robin; Venkatakrishnan Parthasarathy; Anna Pla-Quintana; Olivier Mongin; Francesca Terenziani; Anne-Marie Caminade; Jean-Pierre Majoral; Mireille Blanchard-Desce
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Whereas structure-properties relationships have been widely investigated at the molecular level, supramolecular structure-property relationships have been somewhat overlooked. In many cases, interchromophoric interactions are found to be detrimental (in particular in second-order NLO) and a lot of efforts have been devoted to circumvent and control these effects to achieve efficient NLO materials for electrooptics. At opposite, we have implemented a countermainstream route based on the confinement of push-pull chromophores in close proximity within organic nanodots where both their number and relative position/distance are controlled by covalent attachment onto appropriate organic scaffolds. In such multichromophoric organic superstructures (namely covalent nanoclusters), dipole-dipole interactions can be tuned by playing on the internal architecture (topology, number of chromophoric subunits, length of the covalent linkers) and on the nature and properties (polarity, polarizability) of the chromophoric subunits. Following this strategy, we present the investigation of two series of such organic nanoclusters built from push-pull chromophores where through-space interactions are shown to modify both one-photon (OPA) and two-photon absorption (TPA) of each chromophoric subunits leading to cooperative enhancement of TPA properties and improved transparency.

Paper Details

Date Published: 17 August 2010
PDF: 8 pages
Proc. SPIE 7774, Linear and Nonlinear Optics of Organic Materials X, 77740N (17 August 2010); doi: 10.1117/12.860768
Show Author Affiliations
Anne-Claire Robin, Chimie et Photonique Moléculaires, CNRS, Univ. de Rennes 1 (France)
Venkatakrishnan Parthasarathy, Chimie et Photonique Moléculaires, CNRS, Univ. de Rennes 1 (France)
Anna Pla-Quintana, Lab. de Chimie de Coordination, CNRS (France)
Olivier Mongin, Chimie et Photonique Moléculaires, CNRS, Univ. de Rennes 1 (France)
Francesca Terenziani, Univ. degli Studi di Parma (Italy)
Anne-Marie Caminade, Lab. de Chimie de Coordination, CNRS (France)
Jean-Pierre Majoral, Lab. de Chimie de Coordination, CNRS (France)
Mireille Blanchard-Desce, Chimie et Photonique Moléculaires, CNRS, Univ. de Rennes 1 (France)


Published in SPIE Proceedings Vol. 7774:
Linear and Nonlinear Optics of Organic Materials X
Manfred Eich; Jean-Michel Nunzi; Rachel Jakubiak; Theodore G. Goodson, Editor(s)

© SPIE. Terms of Use
Back to Top