Effect of fullerenes on spectral and nonlinear optical properties of N-(4-nitrophenyl)-(L)-prolinol structure

The influence of fullerenes C-60 and C-70 On the optical characteristics of a premising organic system, N-(4-nitrophenyl)-(L)-prolinol (NPP), is studi ed. The UV and blue absorption bands are found that can be controlled by in troducing fullerenes. These bands are caused by the change in the electroni c structure of the organic system induced by fullerenes and indicate the pr esence of an ordering in the arrangement of macromolecules. The observed ch anges in the IR absorption result from the structural rearrangement of the system and may be related to a weak complexing between a donor fragment of the NPP molecule and fullerene. The effect of restriction of the nanosecond laser radiation at 532 nm is considered and characteristics of nonlinear t ransmission of laser radiation at 337 nm are presented. The levels of atten uation and incident energy are estimated, which determines the possibility of using results of these studies in the development of optical Sates in a broad spectral range. (C) 2000 MAIK "Nauka/Interperiodica".