Journal article
Influence of π-Stacking on the Resonant Enhancement of the Second-Order Nonlinear Optical Response of Dipolar Chromophores
Abstract
The wavelength-dependent second-harmonic generation (SHG) efficiency of two simple dipolar chromophores, 4-NO2C6H4N(H)Bun (1) and 4-NO2C6H4SN(H)But (2), was compared in solution and in the solid state. Hyper-Rayleigh scattering measurements at 532 nm provided comparable molecular first hyperpolarizabilities. Both compounds crystallize in non-centrosymmetric space groups, but a more efficient arrangement of dipole moments results in a …
Authors
Zhang W; Cozzolino AF; Mahmoudkhani AH; Tulumello M; Mansour S; Vargas-Baca I
Journal
The Journal of Physical Chemistry B, Vol. 109, No. 39, pp. 18378–18384
Publisher
American Chemical Society (ACS)
Publication Date
October 1, 2005
DOI
10.1021/jp053142u
ISSN
1520-6106