Author/Authors :
Verbiest، نويسنده , , T. and Sioncke، نويسنده , , S. and Koeckelberghs، نويسنده , , G. and Samyn، نويسنده , , Maike C. J. Persoons، نويسنده , , A. and Botek، نويسنده , , E. and André، نويسنده , , JM. and Champagne، نويسنده , , B.، نويسنده ,
Abstract :
Spincoated thin films of a chiral poly(3-alkylthiophene) were investigated by second-harmonic generation. Based on a study of the polarization dependence of the second-harmonic signal, we were able to show that significant magnetic-dipole contributions are present in the nonlinearity of the films, in addition to the usual electric-dipole contributions.
