Hydrogen-Bond-Directed Orientation in Nonlinear Optical Thin Films


  • A. Rashid thanks Dr. I. Biagio for helpful discussions.


A simple and effective method for the self-assembling of thin films with directional ordering perpendicular to the substrate surface (see Figure) is reported. These films are grown on amorphous glass substrates and show second-order nonlinear optical effects of the order of 5 pm V–1. The ordering in these films can be maintained over large thicknesses (∼800 nm), and they are homogeneous over the area of the thin film.