Third-order nonlinear optical susceptibility measurement in 1-methyl-1'-octadecyl-2,2'-cyanine perchlorate Langmuir-Blodgett films by means of electroabsorption spectroscopy

Murakami H; Morita R; Watanabe T; Asai K; Honma I; Zhou HS; Yamashita M; Ishigure K; Shigekawa H

Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.327, 31-35, 1999

DOI10.1080/10587259908026774 Export Citation

Third-order nonlinear optical susceptibility measurement in 1-methyl-1'-octadecyl-2,2'-cyanine perchlorate Langmuir-Blodgett films by means of electroabsorption spectroscopy

Murakami H, Morita R, Watanabe T, Asai K, Honma I, Zhou HS, Yamashita M, Ishigure K, Shigekawa H

By an electroabsorption spectroscopy technique, we determined the third-order nonlinear optical susceptibilities dispersion in 1-methyl-1'-octadecyl-2,2'-cyanine perchlorate Langmuir-Blodgett (J-aggregate) films in the range of 1.8 to 2.7 eV. In addition, from the values of the polarizability change in the monomer and aggregate films, the number of molecules in an aggregate was evaluated to be 3-4.

Keywords:J-aggregate;Langmuir-Blodgett film;cyanine dye;electroabsorption spectroscopy;nonlinear optical susceptibility