Spectral Properties and Second-Harmonic Generation of Hemicyanine Dye in Langmuir-Blodgett Films

摘要: Organic molecules with large second-order polarizabilities offer an important potential for applications requiring nonlinear optical properties, e.g. signal processing (1,2). Unfortunately most crystallize in centrosymmetric structures preventing their use quadratic optics. The Langmuir-Blodgett technique (3), which allows the fabrication of thin films from these a non-centrosymmetric lattice, offers good possibilities to circumvent this restriction (4–8). A requirement application LB-technique is incorporation hydrophobic moiety render amphiphilic.