Advances in organic photorefractive materials development

Attilio Golemme; Iolinda Aiello; Davide Dattilo; Mauro Ghedini; Alain Bruno; Roberto Termine

doi:10.1117/12.470456

Translator Disclaimer

13 June 2002 Advances in organic photorefractive materials development

Attilio Golemme, Iolinda Aiello, Davide Dattilo, Mauro Ghedini, Alain Bruno, Roberto Termine

Author Affiliations +

Proceedings Volume 4642, Organic Photonic Materials and Devices IV; (2002) https://doi.org/10.1117/12.470456
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

We present results on the photorefractive performance of two different classes of organic materials. One of them is based on the space-charge field induced reorientation of the optical axis of chiral smectic A phases. In this case the orientational effect is linear in the field and it is due to the so-called electroclinic effect, in contrast with the quadratic effect present in nematics and associated with dielectric anisotropy. Besides presenting data on the photorefractive properties of these new mesophases, we will consider a simple model which describes their performance as a function of several material and geometrical parameters. In the second part of the paper we introduce cyclopalladated complexes as a new class of multifunctional photorefractive materials. Such molecules form amorphous phases which are photoconducting and exhibit a field dependent refractive index. Their efficiency is among the best known to date for organic materials and the simple synthetic route makes us foresee a fast optimization of cyclometallated compounds for photorefractive applications.

Citation Download Citation

Attilio Golemme, Iolinda Aiello, Davide Dattilo, Mauro Ghedini, Alain Bruno, and Roberto Termine "Advances in organic photorefractive materials development", Proc. SPIE 4642, Organic Photonic Materials and Devices IV, (13 June 2002); https://doi.org/10.1117/12.470456

ACCESS THE FULL ARTICLE