Fundamental Nonlinear Optics Issues In Organic And Polymer Systems

Abstract

Large, ultrafast second and third order nonlinear optical properties are widely observed in a large number of organic and polymer structures. These systems can be formed as organizable designed structures possessing a number of special primary properties due to their nonlinear electronic polarization whose microscopic origin resides in highly charge correlated virtual excitations. These ultrafast excitations occur on individual molecular, or polymer chain, sites in condensed assemblies that are described by their orientational distribution functions. These and related issues are addressed based on recently completed studies.