The origin of non-linear optical properties of π-conjugated materials and electro-optical modulators

Abstract

Whilst this book is mostly concerned with coupling electron transport properties with emission and optical absorption properties, this Chapter deals specifically with the effect of an electric field (E), whether static or variable, on the optical properties of an organic material. In particular we will look at the effect of electrical fields on the indices of materials, and the changes in the intensity or phase of an optical wave propagated through a polarised organic medium. The assembly of polymer based electro-optical modulators is then introduced. First of all though, as a general overview, we shall detail the generally observed laws.