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Wiley, Advanced Materials, 24(20), p. 4641-4678, 2008

DOI: 10.1002/adma.200800402

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Enhanced two-photon absorption of organic chromophores: theoretical and experimental assessments

Journal article published in 2008 by Francesca Terenziani ORCID, Claudine Katan ORCID, Ekaterina Badaeva, Sergei Tretiak ORCID, Mireille Blanchard-Desce
This paper is available in a repository.
This paper is available in a repository.

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Abstract

C. Katan present address: CNRS UMR6082 FOTON, INSA de Rennes, 20 avenue des Buttes de Coësmes, CS 70839, 35708 RENNES cedex 7, France ; International audience ; Functional organic materials with enhanced two-photon absorption (TPA) lead to new technologies in the fields of chemistry, biology, and photonics. In this article we review experimental and theoretical methodologies allowing detailed investigation and analysis of TPA properties of organic chromophores. This includes femtosecond two-photon excited fluorescence (TPEF) experimental setups and quantum-chemical methodologies based on time-dependent density functional theory (TD-DFT). We thoroughly analyze physical phenomena and trends leading to large TPA responses of a few series of model chromophores focusing on the effects of symmetric and asymmetric donor/acceptor substitution and branching.