NOVEL CALIXARENES IN THIN-FILMS FOR EFFICIENT 2ND-HARMONIC GENERATION

Calix[4]arenes are a novel type of molecules for nonlinear optics. In a single molecule four pi-conjugated systems are combined. Corona pole d guest-host polymer systems [calix[4]arenes-poly(methyl-methacrylate) ] with transparency into the UV and loading up to 100% show a high deg ree of orientation. The maximum resonant d33 nonlinear coefficient mea sured at a fundamental wavelength of 590 nm is 51 pm/V. The d33 values of the thin films relax after poling to 65% of their maximum value. R esults indicate self-organization of the molecules upon poling.