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Proceedings Paper

Optical properties of organic-based periodic structures
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Paper Abstract

Holographic techniques allow the recording of homogeneous, high resolution, large-area light intensity patterns in photo sensitive organic materials. The choice of proper experimental conditions easily permits the fabrication of 1D, 2D and 3D periodic and quasi-periodic structures. In this work we present a simple way to fabricate planar complex photonic structures characterized by high dielectric contrast values. To this purpose we used polymer dispersed liquid crystals as photosensitive material for the holographic recording, followed by the removal of the liquid crystal from the recorded structures via a specific solvent, thus obtaining large area regular polymer-air patterns. The obtained structures have been simulated, recorded in the substrates and optically characterized in planar light guided configurations. The relevant optical properties have been analyzed by means of a theoretical approach formally derived from the dynamical theory of x-ray diffraction. The presented experimental technique allows easy fabrication of optical integrated devices to be used either as high sensitivity sensors or in the field of optical telecommunications.

Paper Details

Date Published: 12 September 2007
PDF: 9 pages
Proc. SPIE 6654, Liquid Crystals XI, 66540M (12 September 2007); doi: 10.1117/12.733630
Show Author Affiliations
Daniele E. Lucchetta, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
Univ. Politecnica delle Marche (Italy)
Francesco Vita, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
Univ. Politecnica delle Marche (Italy)
Riccardo Castagna, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
Univ. Politecnica delle Marche (Italy)
Oriano Francescangeli, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
Univ. Politecnica delle Marche (Italy)
Francesco Simoni, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
Univ. Politecnica delle Marche (Italy)


Published in SPIE Proceedings Vol. 6654:
Liquid Crystals XI
Iam Choon Khoo, Editor(s)

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