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Issue 9, 2011
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Holographic fabrication of azo-dye-functionalized photonic structures

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Abstract

We have developed an azo-dye-doped acrylate-based material formulation for holographic lithography. Volume phase gratings and two-dimensional photonic crystals were demonstrated by recording the interference patterns of two and three coherent beams in this material formulation. The dependence of the first-order Bragg diffraction efficiency of the gratings on the exposure intensity of the writing light was investigated. We have achieved a volume phase grating with a diffraction efficiency of 72%. These azo-dye-functionalized photonic structures showed an excellent all-optical switching behaviour, which was attributed to the imaginary refractive index changes caused by the trans–cisisomerization-induced absorption changes of the azo-dyes. Such photonic structures are potentially useful in the future development of all-optical devices.

Graphical abstract: Holographic fabrication of azo-dye-functionalized photonic structures

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Publication details

The article was received on 06 Oct 2010, accepted on 23 Nov 2010 and first published on 24 Jan 2011


Article type: Paper
DOI: 10.1039/C0JM03368E
J. Mater. Chem., 2011,21, 2982-2986

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    Holographic fabrication of azo-dye-functionalized photonic structures

    Y. J. Liu, H. T. Dai and X. W. Sun, J. Mater. Chem., 2011, 21, 2982
    DOI: 10.1039/C0JM03368E

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