). S. Yao and K. D. Belfield, Two-Photon Fluorescent Probes for Bioimaging, European Journal of Organic Chemistry, vol.8, issue.17, pp.3199-3217
DOI : 10.1002/ejoc.201200281

C. Denneval, S. Achelle, C. Baudequin, and F. , Robin-le Guen Dyes Pigm, pp.49-55, 2014.

X. Pan, Y. Gao, P. N. Zhang, B. Prasad, R. Reinhardt et al., A New Class of Heterocyclic Compounds for Nonlinear Optics, Chemistry of Materials, vol.7, issue.5, pp.816-821, 1995.
DOI : 10.1021/cm00053a002

F. Szotkowski, O. Bure?, J. Pytela, Z. Kulhánek, and . Trávníek, determination of substituted 2-phenylimidazoles, Journal of Heterocyclic Chemistry, vol.32, issue.6, pp.1583-1589, 2006.
DOI : 10.1002/jhet.5570430623

F. Kulhánek, J. Bure?, W. Opr?al, T. Kuznik, A. Mikysek et al., 1,4-Phenylene and 2,5-Thienylene ??-Linkers in Charge-Transfer Chromophores, Asian Journal of Organic Chemistry, vol.55, issue.639, pp.422-431, 2013.
DOI : 10.1002/ajoc.201300063

V. Schmitt, S. Moschel, H. Detert, and H. , Diaryldistyrylpyrazines: Solvatochromic and Acidochromic Fluorophores, European Journal of Organic Chemistry, vol.17, issue.25, pp.5655-5669
DOI : 10.1002/ejoc.201300463

C. Cornec, C. Baudequin, N. Fiol-petit, G. Plé, Y. Dupas et al., One ???Click??? to Access Push-Triazole-Pull Fluorophores Incorporating a Pyrimidine Moiety: Structure-Photophysical Properties Relationships, European Journal of Organic Chemistry, vol.94, issue.10, pp.1908-1915, 2013.
DOI : 10.1002/ejoc.201201033

URL : https://hal.archives-ouvertes.fr/hal-01015416

R. Marder and J. L. Brédas, Theory of molecular excitons, Adv. Funct. Mater, vol.12, pp.631-641, 1971.

C. Terenziani, E. Katan, S. Badaeva, M. Tretiak, and . Blanchard-desce, Enhanced Two-Photon Absorption of Organic Chromophores: Theoretical and Experimental Assessments, Advanced Materials, vol.127, issue.24, pp.4641-4678, 2008.
DOI : 10.1002/adma.200800402

URL : https://hal.archives-ouvertes.fr/hal-00490264

J. Cho, Two Photon Absorption Properties of 1,3,5-Tricyano-2,4,6-tris(styryl)benzene Derivatives, Journal of the American Chemical Society, vol.123, issue.41, pp.10039-10045, 2001.
DOI : 10.1021/ja010770q

E. Cvejn, I. Michail, N. Polyzos, O. Almonasy, M. Pytela et al., Modulation of (non)linear optical properties in tripodal molecules by variation of the peripheral cyano acceptor moieties and the ??-spacer, J. Mater. Chem. C, vol.2, issue.28, pp.7345-7355, 2015.
DOI : 10.1039/C5TC01293G

W. W. Xu and . Webb, Measurement of two-photon excitation cross sections of molecular fluorophores with data from 690 to 1050 nm, Journal of the Optical Society of America B, vol.13, issue.3, pp.481-491, 1996.
DOI : 10.1364/JOSAB.13.000481