Jump to main content
Jump to site search

Issue 19, 2011
Previous Article Next Article

Mesogenic versus non-mesogenic azo dye confined in a soft-matter template for realization of optically switchable diffraction gratings

Author affiliations

Abstract

We report on fabrication and characterization of two different kinds of optically controlled diffraction gratings realized in soft composite materials. The periodic microstructures have been obtained by combining a photolithographic technique and a chemical etching process. The samples have been infiltrated with two classes of photosensitive materials, and then characterized. The first material is a common azo-dye dissolved in a liquid crystal (LC), while the second one is an azobenzene LC (azo-LC). The response and relaxation times, lifetimes and spectral absorption range of the LC mixtures confined in the microstructures were measured. Detailed comparison of investigated characteristics reveals a better overall performance of the azo-LC based sample.

Graphical abstract: Mesogenic versus non-mesogenic azo dye confined in a soft-matter template for realization of optically switchable diffraction gratings

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 19 Jan 2011, accepted on 11 Mar 2011 and first published on 24 Mar 2011


Article type: Communication
DOI: 10.1039/C1JM10284B
Citation: J. Mater. Chem., 2011,21, 6811-6814
  •   Request permissions

    Mesogenic versus non-mesogenic azo dye confined in a soft-matter template for realization of optically switchable diffraction gratings

    L. De Sio, S. Serak, N. Tabiryan and C. Umeton, J. Mater. Chem., 2011, 21, 6811
    DOI: 10.1039/C1JM10284B

Search articles by author