C. CUNIBERTI

We report the optical properties of a highly oriented form of poly[1,6-di(N-carbazolyl)-2,4-hexadiyne] grown by molecular epitaxy on a crystalline substrate of potassium acid phthalate. The real and imaginary parts of the refractive index are deduced from both transmittance and near-normal incidence absolute reflectance. (C) 1997 Elsevier Science Ltd.

In this paper we report the optical absorption and photoinduced absorption spectra of poly(1-N-carbazolyl-penta-1,3 diyne-5-acetoxy) and of poly(1-N-carbazolyl-penta-1,3-diyne-5-ol) and their relation to temperature, excitation intensity, and frequency of the pump-probe cycles. Preliminary data on an oligomeric sample are also discussed. All...