Figures of merit of push-pull molecules in photorefractive polymers

Journal of Chemical Physics

Volumn 112, Issue 4, 2000, Pages 2036-2044

  Barzoukas, M ^a,c   Blanchard Desce, M ^b  

^a INSTITUT DE PHYSIQUE ET CHIMIE DES MATÉRIAUX DE STRASBOURG   (France)

^b ECOLE NORMALE SUPÉRIEURE   (France)

^c INSTITUT CHARLES SADRON   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000392096     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.480764     Document Type: Article

References (62)

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33. The expressions of PR modulations given in this work are derived in the weak poling field limit as in Refs. 3, 13, and 29.
34. The poling-induced changes of the KEO susceptibilities are neglegible in the weak poling field limit.
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36. 3 where axis X is orthogonal to the poling Z axis). These relationships are no longer valid when the weak poling field condition is not satisfied.
37. g PRP, it is possible that the PP chromophores alignment generates an internal electric field, opposite to the poling field. No such fields have been reported.
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47. The contributions of higher excited states are not expected to alter significantly the cubic polarizability of push-pull molecules, provided experiments are carried out away from two-photon resonance. See following references: J. Messier, F. Kajzar, C. Sentein, M. Barzoukas, J. Zyss, M. Blanchard-Desce, and J.-M. Lehn, Nonlinear Opt. 2, 53 (1992); F. Meyers, S. R. Marder, B. M. Pierce, and J.-L. Brédas, J. Am. Chem, Soc. 116, 10703 (1994).
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59. gβ(0) maxima cannot be derived from these studies.
60. eg in dioxane are reported for series 1a, 1b, and 2d in Ref. 44 and for series 3d in Ref. 45.
61. The EOAM data in dioxane are taken from Ret. 16 for DMNPAA and ATOP, and from Ref. 57 for DCDEAHT, an analogue of DHDAC-MPN as it has the same π-electronic backhone (see Figs. 1 and 5).
62. gβ(0), and γ(0) maxima of ATOP and 3d[1] can be explained by a significant difference in the dipoles of the neutral and the zwitterionic forms.