OPTICAL 2ND-HARMONIC GENERATION FROM POLYMERIZED LANGMUIR-BLODGETT-FILMS OF 2-(21'-DOCOSENYL)AMINO-5-NITROPYRIDINE

Thin films of 2-(21'-docosenyl)amino-5-nitropyridine (VECANP) have bee n prepared by the Langmuir-Blodgett (LB) method. Subsequently the film s were polymerized by X-ray irradiation. UV/VIS-spectroscopy showed th at the light transparency range extends from 450 nm to at least 2000 n m. The dispersion of the nonlinear optical susceptibilities d33 and d3 1 have been determined in the wavelength range between 840 nm and 1318 nm. The different solubilities of polymerized and non-polymerized VEC ANP in n-hexane offers the possibility to structure the films laterall y (for example to fabricate strip waveguides); a necessary condition f or applications in integrated optics.